| Sideritis × accidentalis Sánchez Gómez & R.Morales | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis aculeata (Bubani) Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis aegyptiaca Pers. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ajpetriana Klokov | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis akkarensis Gomb. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis akmanii Aytac, Ekici & Donmez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis albiflora Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × alcarazii D.Rivera, Obón & De la Torre | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis algarviensis D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis algarviensis subsp. lusitanica (Font Quer) Rivas Mart., T.E.Díaz & Fern.Gonz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis algarviensis subsp. taviroana D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis almeriensis Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis almeriensis var. osteoxylla Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis alopecuros (L.) Scop. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis alpina Vill. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis alpina Pourr. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis altiatlantica (Font Quer) Peris, Stübing & Figuerola | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis amagroi Marrero Rodr. & B.Navarro | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis amasiaca Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ambigua Fenzl | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × anagae (Christ) ined. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × angustifolia Lam. ex Willk. [Spelling variant] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia Lag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia var. canescens T.Navarro & Rosua | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia subsp. funkiana (Willk.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia var. lusitanica Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia var. meridionalis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis angustifolia var. saetabensis (Rouy) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis antiatlantica (Maire) Rejdali | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × antonii-josephii Font Quer & Rivas Goday | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis approximata Gasp. ex Guss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × aragonensis Sennen & Pau [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis aranensis (Font Quer) D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × arasae Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens Salzm. ex Benth. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens var. africana Font Quer & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens var. antiatlantica (Maire) Dobignard | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. antiatlantica (Maire) Romo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. kebdanensis Font Quer & Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens var. lazari Font Quer & Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. lusitanica (Font Quer) Rivas Mart., T.E.Díaz & Fern.Gonz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. luteola (Font Quer) P.W.Ball ex Heywood | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. maireana (Font Quer & Pau) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. ortonedae (Font Quer & Pau) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens var. ortonedae Font Quer & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. paulii (Pau) P.W.Ball ex Heywood | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arborescens subsp. perezlarae Borja | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis argosphacelus (Webb & Berthel.) Clos | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis argosphacelus var. spicata (Pit.) Bornm. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis argosphacelus f. tomentosa (Pit.) Svent | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis arguta Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis argyrea P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × arizagana Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis armeniaca Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis athoa Papan. & Kokkini | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis atlantica Pomel | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis atrinervia Klokov | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis attica Heldr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis augustinii Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis aurasiaca Batt. & Trab. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis baetica Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis balansae Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis balansae Coss. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis barbellata Mend.-Heuer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis bastanitsensis Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × benedictoi Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis beniboufraiana Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis bifaria Huter | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis biflora Porta & Rigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis bilgeriana P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × biscaina Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis boissieri Magnier | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis boissieriana Peris & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis bolleana Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis bolosiana Rosello, Peris & Stübing | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis borgiae J.Andrés | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis borgiae subsp. relegata (Font Quer) Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × bornmuelleri Negrín & P.Pérez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis bourgaei Boiss. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis bourgeana Boiss. & Reut. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis brachycalyx Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis brachystachys Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis brevibracteata P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis brevicaulis Mend.-Heuer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis brevidens P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis brevispica Sennen & Elias | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis briquetiana Font Quer & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis brutia Ten. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis bubanii Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis bullata Kunth | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cabrerae Ceballos & Ortuño | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × cadevallii Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis caesarea H.Duman, Aytaç & Baser | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis calduchii Cirujano & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis calycantha M.Bieb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis camarae (Pau) Sennen | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis canariensis L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis canariensis var. pannosa (Christ) Bornm. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × candelii Font Quer & Pau [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans Aiton | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. angae (Christ) Svent | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. candicans  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. crassifolia Lowe | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. eriocephala Ceballos & Ortuño | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. longifolia Lowe | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis candicans var. stricta (Webb ex H.Christ) Svent | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis candida Salisb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cantabrica Arizaga | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cantabrica Sennen & Elias | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis carbonellis Socorro | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis carbonellis var. hispanica (Font Quer) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis carolipauana Peris & Stübing | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × carrissoana Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis cassia Hub.-Mor. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cassia Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis castellana (Sennen & Pau) Sennen & Elias | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis catalaunica Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis catalaunica var. cinerascens Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis catillaris Juz. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis catillaris var. chlorostegia Zefir. | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Sideritis caureliana (Obón & D.Rivera) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cavanillesii Lag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis chamaedryfolia Cav. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis chamaedryoides Dufour ex Willk. & Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis chlorostegia Juz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis christii Briq. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ciliata Thunb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cilicica Boiss. & Balansa | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cirujanoi Romo & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis clandestina (Bory & Chaub.) Hayek | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis clandestina subsp. clandestina  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis clandestina var. cyllenea (Heldr. ex Boiss.) Hayek | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis clandestina subsp. cyllenea (Heldr. ex Boiss.) Papan. & Kokkini | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis clandestina subsp. peloponnesiaca (Boiss. & Heldr.) Baden | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis comosa (Rochel ex Benth.) Stankov | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis comosa Stank. | 
		Accepted | 
		  | 
		TRO | 
	
	
		| Sideritis condensata Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis condensata var. procumbens (Boiss.) Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis conferta Juz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis congesta P.H.Davis & Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cossoniana Ball | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × costa-talensii Obón, D.Rivera, Alcaraz | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × costae Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis crenata Lapeyr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica Boiss. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica var. anagae (Christ) Mendoza-Heuer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica var. condensata Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica subsp. cretica  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica subsp. spicata (Pit.) Negrin & P.Pérez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cretica var. stricta (Webb ex H.Christ) Mendoza-Heuer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × crisogonii Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis crispata Willd. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cuatrecasasii Peris, Stübing & Figuerola | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis curvidens Stapf | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis cypria Post | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis cystosiphon Svent. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis danielii D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis dasygnaphala (Webb & Berthel.) Clos | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis debeauxii Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis decumbens Thunb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis decumbens Moench | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × delgadilloi Obón, D.Rivera & Alcaraz | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis dendrochahorra Bolle | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis dendrochahorra var. albida (Pit.) Svent. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis dendrochahorra var. soluta (Clos) Svent. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis deserti Noë | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis dianica D.Rivera & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis dichotoma Huter | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis discolor Willd. ex Bolle | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis distans Willd. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis dubia Coulomb | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis dura Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ebracteata Asso | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis edetana (Pau ex Font Quer) Peris, Figuerola & Stübing | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis elegans Murray | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × embergeri Sennen & Mauricio [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii Willk. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii subsp. emporitana (Cadevall) D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii subsp. endressii  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii f. laxispicata Degen & Debeaux | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii subsp. laxispicata (Degen & Debeaux) Heywood | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii subsp. littoralis (Timb.-Lagr.) D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii var. littoralis (Timb.-Lagr.) Gaut. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis endressii subsp. provincialis (Jord. & Fourr.) Coulomb | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × engleriana Bornm. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis eriocephala Marrero Rodr. ex Negrín & P.Pérez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis erythrantha Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis euboea Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis euxina Juz. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis eynensis Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis faurei Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis fernandez-casasii Rosello & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × fernandezii Negrin & P.Pérez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ferrensis P.Pérez & Négrin | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis fetida Poir. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis flaviflora Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis flavovirens (Rouy) Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis florida Boiss. & Heldr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis foetens Clemente ex Lag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis foetens Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis foetens var. rivasgodayi Fern.Casas | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis foetida Desf. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × font-queri Sennen & Mauricio [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis fontii Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis fontiqueriana Peris, Romo & Stübing | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis fontqueri Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis foucauldiana Sennen & Mauricio | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis fragrans Costa ex Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis fruticulosa Pourr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis fruticulosa f. cavanillesii (Lag.) Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis fruticulosa f. crispata (Willd.) Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis funkiana Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis funkiana subsp. talaverana Socorro, L.Cano & Espinar | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis gaditana Rouy | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis galatica Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × garrigae Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis georgica K.Koch | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis germanicopolitana Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis germanicopolitana subsp. viridis Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis getula Batt. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis giennensis Pau ex Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis × ginesii Socorro, L.Cano & Espinar | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis gineslopezii Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis Boiss. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis subsp. fontqueriana Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis subsp. glacialis  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis f. hispanica (Font Quer) Cuatrec. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis f. incana Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis var. pulvinata Font Quer [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis subsp. virens (Boiss.) Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis glacialis f. virens Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis glandulifera Post | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis glauca Cav. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis gomerae Bolle | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis gomerae subsp. gomerae  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis gossypina Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis gouanii Timb.-Lagr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis gouyouniana Boiss. & Reut. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis gracilis Barbey | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis granatensis (Pau) Alcaraz & al. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis granatensis subsp. briquetiana (Font Quer & Pau) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis grandiflora Salzm. ex Benth. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis grandiflora subsp. baetica (Lange) Roselló & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis grandiflora var. baetica (Lange) Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis grandis Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis grantii Batt. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × grosii Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis × guaxarae P.Pérez & Négrin | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis guayedrae Marrero Rodr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × gudarica Mateo, López Udias & Fabregat | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis guillonii Timb.-Lagr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis guillonii subsp. brevispica (Sennen & Elias) D.Rivera & Obón | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis guillonii subsp. peyrei (Timb.-Lagr.) D.Rivera & Obón | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis gulendamii H.Duman & Karaveliogullari | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis guyoniana Boiss. & Reut. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis heraclea Colebr. ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. angustifolia Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. bracteosa Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. bubanii (Font Quer) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. chamaedryfolia (Cav.) Coss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. danielii (D.Rivera & Obón) Rivas Mart. & Cantó | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. emporitana (Cadevall) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. emporitana Cadevall | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. endressii (Willk.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. flaviflora Font Quer & Cuatrec. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. glabrior Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. granatensis Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. hirsuta  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. hirta (Roth) Pers. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. hirtula (Brot.) P.Silva | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. hirtula (Brot.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. laniculata Pérez Lara | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. littoralis (Timb.-Lagr.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. luxurians Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. maritima Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. maritima (Font Quer) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. maroccana Coss. ex Batt. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. minorifolia Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. nivalis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. nivalis (Font Quer) Socorro, I.Tarrega & Zafra | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. provinvialis Rouy | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. tomentosa (Pourr.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. tomentosa (Pourr.) Lapeyr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. vallisoletana Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta subsp. vulgaris (Willk.) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirsuta var. vulgaris Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirta Roth | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hirtula Brot. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hispanica Mill. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hispida P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hololeuca Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis huber-morathii Greuter & Burdet | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. alavesa Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. alpina (Vill.) Willd. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. alpina (Vill.) Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. angustifolia (Benth.) Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. angustifolia (Benth.) Willk. | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Sideritis hyssopifolia var. aranensis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. aranensis (Font Quer) Malag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. atlantica (Pomel) Batt. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. australis Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. brachycalyx (Pau) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. camarae Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. castellana Sennen & Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. castellana (Sennen & Pau) Malag. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. caureliana Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. corbariensis Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. crenata (Lapeyr.) Loisel. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. dentifolia Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. elongata Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. eynensis (Sennen) Malag. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. fruticulosa (Pourr.) Loisel. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. glacialis (Boiss.) Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. guillonii (Timb.-Lagr.) Nyman | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. hirta (Roth) Loisel. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. hirtula Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. hyssopifolia  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. incana (Benth.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. integrifolia Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. intermedia Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. intermedia (Roth) Willk. | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Sideritis hyssopifolia var. laxispica López Pach. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. longicaulis Rouy | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. nocedoi Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. pastoris (Sennen) Malag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia f. paucidentata Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. peyrei (Timb.-Lagr.) Briq. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. peyrei (Timb.-Lagr.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. phyllantha Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. pyrenaica (Poir.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. relegata Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. salcedoi Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. santanderina D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia subsp. somedana Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis hyssopifolia var. spicata Gaudin | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ibanyenzii Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ibrahinii Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ilicifolia Willd. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ilicifolia var. hirsuta Willk. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ilicifolia subsp. ilicifolia  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ilorcitana Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis imbrex Juz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis imbricata Juz. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis imbricata H.Lindb. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis incana L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. albiflora Maire | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. altiatlantica Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. edetana Pau ex Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. edetana (Pau ex Font Quer) Mateo & M.B.Crespo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. glauca (Cav.) Malag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. guyoniana (Boiss. & Reut.) Pau ex Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. incana  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. matris-filiae (Emb. & Maire) Maire | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. occidentalis (Font Quer) Cabezudo, Nieto Caldera & T.Navarro | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. occidentalis Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. regimontana Maire | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. robusta Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. sericea (Pers.) Amo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. sericea (Pers.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. serrata (Cav. ex Lag.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. socovensis D.Rivera & Obón | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. spinulosa (Font Quer) Rivas Goday & Borja ex Sánchez Mata | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. tomentosa Batt. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana var. tragoriganum (Lag.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. tunetana Murb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis incana subsp. virgata (Desf.) Malag. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × incanoides Font Quer & Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis infernalis Bolle | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis integrifolia Jord. & Fourr. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis interrupta Gomb. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis italica (Mill.) Greuter & Burdet | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis jahandiezii Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis javalambrensis Pau | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis juncea Cav. ex Willk. & Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis jurana Jord. & Fourr. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis juryi Peris, Stübing & Figuerola [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis kebdanensis Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × kerguelenii D.Rivera, Obón & De la Torre | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis kmolea DAVIS | 
		Unresolved | 
		  | 
		TRO | 
	
	
		| Sideritis kuegleriana Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis kurdica Bornm. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis lacaitae Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × laderoi Socorro & García-Gran. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lagascana Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × lainzii Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lanata L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lasiantha Juss. ex Pers. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis latiuscula Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × laurentii Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis lavandulacea Pourr. ex Willk. & Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis laxispicata (Degen & Debeaux) Socorro, I.Tarrega & Zafra | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leptoclada O.Schwarz & P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha Cav. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. albicaulis Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. bourgeana (Boiss. & Reut.) Alcaraz & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha var. flavovirens Rouy | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. illicitana Alcaraz & al. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. incana (Willk.) Malag. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. leucantha  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha var. meridionalis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha subsp. mohamedii (Rejdali) Socorro & Arrebola | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis leucantha var. tomentosa Font Quer ex O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × liantei Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica Labill. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica var. incana Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica subsp. kurdica (Bornm.) Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica subsp. libanotica  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica subsp. linearis (Benth.) Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica var. linearis Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica var. microchlamys Hand.-Mazz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica subsp. microchlamys (Hand.-Mazz.) Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis libanotica subsp. violascens (P.H.Davis) P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × linearifolia Lam. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia Lag. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia Willd. ex Benth. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia Willk. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia Boiss. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia var. incana Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis linearifolia var. javalambrensis (Pau) Font Quer ex O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis littoralis Timb.-Lagr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × llenasi Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis longicaulis Jord. & Fourr. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis longifolia Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × loscosiana Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis lotsyi (Pit.) Ceballos & Ortuño | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lotsyi var. grandifolia Mendoza-Heuer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis lotsyi var. lotsyi  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lotsyi var. mascaensis Svent. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis luciae Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis lucida J.Gay ex Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis lurida J.Gay | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lurida subsp. borgiae (J.Andrés) Luceño, Gardia Muñoz & A.González | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lurida var. relegata (Font Quer) Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis lurida subsp. relegata (Font Quer) Rivas Mart., Fern.Gonz. & Sánchez Mata | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis luteola Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis lycaonica Boiss. & Heldr. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis lycia Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis macrostachys Poir. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis maculata Gilib. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis maireana Font Quer & Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis maireana var. carbonelli Sennen & Mauricio | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis mansanetiana Stübing, Peris & Figuerola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × marcelii Elias & Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis mariae Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis marianica Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis marminorensis Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis marmorea Bolle | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis maroccana Obón & D.Rivera | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis marschalliana Juz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × masferreri Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis massoniana Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis massoniana var. albida Pit. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis massoniana var. crassifolia (Lowe) Svent | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis massoniana f. longifolia (Lowe) Svent | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis matris-filiae Emb. & Maire | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis maura Noë | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × mauritii Maire & Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis mezgouti Molero & J.M.Monts. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis microchlamys (Hand.-Mazz.) Bornm. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis microstegia Boiss. & Hausskn. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis mohamedii Rejdali | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis molinae Stübing, Peris & Figuerola | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis montana L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis montana var. comosa Rochel ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis montana subsp. comosa Soó | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Sideritis montana subsp. ebracteata (Asso) Murb. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis montana subsp. montana  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis montana subsp. remota (d'Urv.) P.W.Ball | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis montserratiana Stübing & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × montserratii D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis moorei Peris & al. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis mucronata Sieber ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis mugronensis Borja | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis munyozgarmendiae Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × murcica (Font Quer) Romo | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × murcica var. aemiliae (Font Quer) Romo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × murcica var. affinis (Font Quer) Romo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × murcica var. stricta (Font Quer) Romo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis murgetana Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis murgetana subsp. murgetana  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis mutica Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × navasii Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis nemausensis Jord. & Fourr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis nervosa (Christ) Linding. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis nigricans Lam. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis niveotomentosa Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis nusairiensis Post | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis nutans Svent. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis obonisriveraeque Stübing & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis occidentalis (Font Quer) Peris, Stübing & Figuerola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ochroleuca Noë ex Willk. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ochroleuca subsp. antiatlantica (Maire) Socorro & Arrebola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ochroleuca var. antiatlantica Maire | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ochroleuca var. getula (Batt.) Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ochroleuca var. hispanica Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ocymastrum L. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis oleifolia Mill. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis oromaroccana Peris, Stübing & Figuerola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis oroteneriffae Négrin & P.Pérez | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ortonedae Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis osteoxylla (Pau) Alcaraz & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ovata Cav. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis ozturkii Aytaç & Aksoy | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pallida Thunb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis paniculata Kunth | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × pardoana Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis parvifolia Lam. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pastoris (Sennen) Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pastoris var. laxiflora Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pastoris var. subalpina Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis patula Dulac [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × paui Font Quer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis paulii Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pavillardii Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peloponnesiaca Boiss. & Heldr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis penzigii (Pit.) Ceballos & Ortuño | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis perezlarae (Borja) Rosello, Stübing & Peris | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis perfoliata L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis perfoliata subsp. athoa (Papan. & Kokkini) Baden | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis perfoliata var. condensata Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis perfoliata subsp. perfoliata  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis peruviana Willd. ex Benth. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis × petriludovici Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei Timb.-Lagr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei subsp. castellana (Sennen & Pau) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei var. gouanii (Timb.-Lagr.) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei subsp. guillonii (Timb.-Lagr.) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei var. incana (Benth.) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei var. laxispica (López Pach.) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei subsp. pastoris (Sennen) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis peyrei var. vidalii (Sennen) Coulomb | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × philothei Sennen & Mauricio [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis phleoides Lange ex Willk. & Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis phlomifolia Salisb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis phlomoides Boiss. & Balansa | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis phrygia Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pilibunda Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pisidica Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis platystachya Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis plumosa Thunb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis prostrata Zuccagni [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis provincialis Jord. & Fourr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × puiggariana Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis pullulans Vent. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pumila (Christ) Mendoza-Heuer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pungens Benth. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pungens subsp. javalambrensis (Pau) Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pungens subsp. pungens  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis purpurea Talbot ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla (Lange) Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla subsp. briquetiana (Font Quer & Pau) D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla var. carthaginensis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla subsp. granatensis (Pau) D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla subsp. pusilla  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis pusilla var. salina Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pycnostachys Pomel ex Batt. & Trab. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pyrenaica Poir. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis pyrenaica var. alpina (Vill.) Poir. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis raeseri Boiss. & Heldr. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis raeseri subsp. attica (Heldr.) Papan. & Kokkini | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis raeseri subsp. florida (Boiss. & Heldr.) Papan. & Kokkini | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis regimontana (Maire) Peris, Stübing & Figuerola | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis remota d'Urv. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis remotior Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis repens Sessé & Moc. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis reverchonii Willk. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis rhytidea Spreng. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis riklii Briq. [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis robusta (Font Quer) Peris, Figuerola & Stübing | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis romana L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis romana var. approximata (Gasp. ex Guss.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis romana subsp. curvidens (Stapf) Holmboe | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis romana var. lazae Socorro, I.Tarrega & Zafra | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis romana subsp. purpurea (Talbot ex Benth.) Heywood | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis romana subsp. romana  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis romoi Peris & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis rosea Desf. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis rossii Peris & al. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis rotundifolia Willd. ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × rubioi Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis rubriflora Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis rugosa Poir. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis rugosa Thunb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis ruscinonensis Timb.-Lagr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis saetabensis Rouy | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis salina (Font Quer) Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × sallentii Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis salviifolia Kunth | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × sanmiguelii Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis sauvageana D.Rivera & Obón | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis scardica Griseb. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis scardica subsp. longibracteata Papan. & Kokkini | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides L. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. alpina (Vill.) Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. angustifolia Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides subsp. cavanillesii (Lag.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. cavanillesii (Lag.) Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. communis Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. elongata Benth. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides subsp. fruticulosa (Pourr.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. fruticulosa (Pourr.) Lam. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. glabrata Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. glabrior (Benth.) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. grandiflora Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. guillonii (Timb.-Lagr.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides subsp. guillonii (Timb.-Lagr.) Briq. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. hirta (Roth) Willd. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides subsp. hirtula (Brot.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. hyssopifolia (L.) Mutel | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. incana Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. peyrei (Timb.-Lagr.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. pusilla Lange | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scordioides var. vestita Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis scythica Juz. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × segobricensis Pau ex Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × segobricensis var. pauana Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × sennenii Font Quer [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis sericea Pers. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis serrata Cav. ex Lag. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis serratifolia Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis sicula Ucria | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis sierrarafolsiana Roselló & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis sipylea Boiss. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis soluta Clos | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis soluta subsp. soluta  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis spathulata Lam. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spicata (Pit.) Marrero Rodr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinosa Lam. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinosa Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinosa var. serrata (Cav. ex Lag.) Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinosa var. subspinosa (Cav.) Willk. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinosa var. subspinosa (Cav.) Nyman | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Sideritis spinulosa Barnades ex Asso | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis spinulosa var. hirsuta O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinulosa var. ilicifolia (Willd.) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinulosa subsp. ilicifolia (Willd.) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinulosa var. intermedia (Font Quer) O.Bolòs & Vigo | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis spinulosa subsp. subspinosa (Cav.) Molero | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis stachydioides Willk. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis stricta Benth. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis subatlantica Batt. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis subatlantica f. eriostachya Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis subspinosa Cav. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis subspinosa f. intermedia Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis suffruticosa Mill. ex Benth. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis sventenii (G.Kunkel) Mend.-Heuer | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca L. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca Pall. ex M.Bieb. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca subsp. catillaris (Juz.) Gladkova | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca subsp. nusairiensis (Post) Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca subsp. syriaca  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis syriaca subsp. taurica (Steph. ex Willd.) Gladkova | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis tafraoutiana Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis taurica Steph. ex Willd. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis taurica M. Bieb. | 
		Unresolved | 
		  | 
		TRO | 
	
	
		| Sideritis taurica var. glandulosa Albov | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis taurica var. procumbens Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis teucriifolia Delile [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis theezans Boiss. & Heldr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis theezans var. cyllenea Heldr. ex Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis theezans subsp. peloponnesiaca (Boiss. & Heldr.) Nyman | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis tmolea P.H.Davis | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × tomas-barberanii Obón, D.Rivera, Alcaraz | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis tomentosa Pourr. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis tomentosa Ucria [Illegitimate] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis tragoriganum Lag. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis tragoriganum subsp. funkiana (Willk.) Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis tragoriganum subsp. mugronensis (Borja) Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis tragoriganum subsp. tragoriganum  | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis trinervia Gilib. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis trojana Bornm. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis tugiensis S.Ríos, M.B.Crespo & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis tunetana (Murb.) Obón & D.Rivera | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis vagans Gand. [Invalid] | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × valentina Sennen & Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis velayosiana Peris & al. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis vestita (Boiss.) Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis vestita var. virens Boiss. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × viciosoi Pau | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis × viciosoi var. aemiliae Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × viciosoi var. affinis Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × viciosoi var. murcica Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × viciosoi var. stricta Font Quer | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis vidalii (Sennen) Sennen | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis villosa Coss. & Ball | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis villosa subsp. gossypina (Font Quer) Dobignard | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis vincenti Sennen & Mauricio | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis violascens P.H.Davis | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis virgata Desf. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis viridifolia Dulac | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis vulcanica Hub.-Mor. | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis vuralii H.Duman & Baser | 
		Accepted | 
		  | 
		WCSP | 
	
	
		| Sideritis wiedemannii Gomb. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis woronowii Schischk. ex Grossh. | 
		Synonym | 
		  | 
		WCSP | 
	
	
		| Sideritis × xavieri Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis yvesiana Font Quer & Sennen [Unplaced] | 
		Unresolved | 
		  | 
		WCSP | 
	
	
		| Sideritis zaiana Sauvage [Invalid] | 
		Synonym | 
		  | 
		WCSP |