| Platanthera acuifera Lindl. | Unresolved |  | TRO | 
	
		| Platanthera acuminata Lindl. | Synonym |  | WCSP | 
	
		| Platanthera acuta (Rchb.f.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera affinis Wight | Synonym |  | WCSP | 
	
		| Platanthera albida (L.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera albida var. straminea (Fernald) Luer | Synonym |  | WCSP | 
	
		| Platanthera albomarginata Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera algeriensis Batt. & Trab. | Accepted |  | WCSP | 
	
		| Platanthera alpinipaludosa P.Royen | Accepted |  | WCSP | 
	
		| Platanthera altigena Schltr. | Synonym |  | WCSP | 
	
		| Platanthera amabilis Koidz. | Accepted |  | WCSP | 
	
		| Platanthera amamiana Ohwi | Synonym |  | WCSP | 
	
		| Platanthera amesiana Schltr. | Synonym |  | WCSP | 
	
		| Platanthera anboensis Masam. | Synonym |  | WCSP | 
	
		| Platanthera × andrewsii (M.White) Luer | Accepted |  | WCSP | 
	
		| Platanthera angolensis Schltr. | Synonym |  | WCSP | 
	
		| Platanthera angustata (Blume) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera angustifolia (Lindl.) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera angustilabris Seidenf. | Accepted |  | WCSP | 
	
		| Platanthera × apalachicola P.M.Br. & S.L.Stewart | Accepted |  | WCSP | 
	
		| Platanthera aphylla (Forssk.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera aquilonis Sheviak | Accepted |  | WCSP | 
	
		| Platanthera arachnoidea (A.Rich.) Engl. | Synonym |  | WCSP | 
	
		| Platanthera arcuata Lindl. | Accepted |  | WCSP | 
	
		| Platanthera arfakensis Renz | Accepted |  | WCSP | 
	
		| Platanthera azorica Schltr. | Synonym |  | WCSP | 
	
		| Platanthera bakeriana (King & Pantl.) Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera × beckneri P.M.Br. | Accepted |  | WCSP | 
	
		| Platanthera behringiana (Rydb.) Tatew. & Kobayashi | Synonym |  | WCSP | 
	
		| Platanthera bhutanica K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera × bicolor (Raf.) Luer | Accepted |  | WCSP | 
	
		| Platanthera biermanniana (King & Pantl.) Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera bifolia (L.) Rich. | Accepted |  | WCSP | 
	
		| Platanthera bifolia f. angustifolia Potonié | Synonym |  | WCSP | 
	
		| Platanthera bifolia subsp. atropatanica B.Baumann & al. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. atropatanica (B.Baumann & al.) P.Delforge | Synonym |  | WCSP | 
	
		| Platanthera bifolia subsp. bifolia | Accepted |  | WCSP | 
	
		| Platanthera bifolia f. brachyglossa (Wallr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. bracteata Cortesi | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. carducciana (Goiran) Hallier & Wohlf. | Synonym |  | WCSP | 
	
		| Platanthera bifolia subsp. chlorantha Rouy | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. conferta Peterm. | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. densiflora (Drejer) Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia subsp. extremiorientalis (Nevski) Soó | Accepted |  | WCSP | 
	
		| Platanthera bifolia subsp. graciliflora Bisse | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. grandiflora Hartm. ex Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. humilior Zapal. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. kuenkelei (H.Baumann) P.Delforge | Accepted |  | WCSP | 
	
		| Platanthera bifolia subsp. kuenkelei (H.Baumann) Kreutz | Synonym |  | WCSP | 
	
		| Platanthera bifolia subsp. latiflora (Drejer) Løjtnant | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. latiflora (Drejer) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. latiflora (Drejer) E.G.Camus | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. latiflora (Drejer) Kreutz | Synonym |  | TRO | 
	
		| Platanthera bifolia var. laxa Peterm. | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. major Zapal. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. microglossa Zapal. | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. nudicaulis Beck | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. obtusifolia Schur | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. pervia (Peterm.) Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. pervia (Peterm.) Asch. & Graebn. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. quadrifolia Peterm. | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. simonkaiana Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. subalpina Brügger | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. subalpina (Brügger) Soó | Synonym |  | WCSP | 
	
		| Platanthera bifolia var. tenuiflora (G.Mey.) Thell. | Synonym |  | WCSP | 
	
		| Platanthera bifolia f. trifoliata (Thielens) Pauca & Nyár. | Synonym |  | WCSP | 
	
		| Platanthera bigelovii Alph.Wood | Synonym |  | WCSP | 
	
		| Platanthera blephariglottis (Willd.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera blephariglottis var. blephariglottis | Accepted |  | WCSP | 
	
		| Platanthera blephariglottis var. conspicua (Nash) Luer | Accepted |  | WCSP | 
	
		| Platanthera blephariglottis f. holopetala (Lindl.) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera blephariglottis var. holopetala (Lindl.) Torr. | Synonym |  | WCSP | 
	
		| Platanthera blumei Lindl. | Accepted |  | WCSP | 
	
		| Platanthera boninensis Koidz. | Accepted |  | WCSP | 
	
		| Platanthera borealis (Cham.) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera borneensis (Ridl.) J.J.Wood | Accepted |  | WCSP | 
	
		| Platanthera brachycorythis Schltr. | Synonym |  | WCSP | 
	
		| Platanthera brachyglossa (Wallr.) Rchb. | Synonym |  | WCSP | 
	
		| Platanthera brachyphylla Lindl. | Synonym |  | WCSP | 
	
		| Platanthera bracteata (Muhl. ex Willd.) Torr. | Synonym |  | WCSP | 
	
		| Platanthera brevicalcarata Hayata | Accepted |  | WCSP | 
	
		| Platanthera brevifolia (Greene) Senghas | Accepted |  | WCSP | 
	
		| Platanthera brevifolia (Greene) Kraenzl. | Synonym |  | TRO | 
	
		| Platanthera brevifolia f. alba P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera buchananii Schltr. | Synonym |  | WCSP | 
	
		| Platanthera bulbinella (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera calderoniae López-Ferr. & Espejo | Accepted |  | WCSP | 
	
		| Platanthera camtschatica (Cham.) Soó | Synonym |  | WCSP | 
	
		| Platanthera camtschatica (Cham.) Makino | Synonym |  | TRO | 
	
		| Platanthera canarensis Lindl. ex Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera × canbyi (Ames) Luer | Accepted |  | WCSP | 
	
		| Platanthera candida Lindl. [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera candida (Rand.Morgan & Ackerman) R.M.Bateman [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera carducciana Goiran | Synonym |  | WCSP | 
	
		| Platanthera championii Lindl. | Synonym |  | WCSP | 
	
		| Platanthera × channellii Folsom | Accepted |  | WCSP | 
	
		| Platanthera chapmanii (Small) Luer | Accepted |  | WCSP | 
	
		| Platanthera chiloglossa (Tang & F.T.Wang) K.Y.Lang | Accepted |  | WCSP | 
	
		| Platanthera chingshuishania S.S.Ying | Synonym |  | WCSP | 
	
		| Platanthera chlorantha (Custer) Rchb. | Accepted |  | WCSP | 
	
		| Platanthera chlorantha subsp. algeriensis (Batt. & Trab.) Emb. | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. angustata Zapal. | Synonym |  | WCSP | 
	
		| Platanthera chlorantha f. bracteata Zapal. | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. densa (Freyn) Soó | Synonym |  | TRO | 
	
		| Platanthera chlorantha var. grandiflora M.Schulze | Synonym |  | WCSP | 
	
		| Platanthera chlorantha f. grandiflora (M.Schulze) Soó | Synonym |  | WCSP | 
	
		| Platanthera chlorantha subsp. holmboei (H.Lindb.) J.J.Wood | Synonym |  | WCSP | 
	
		| Platanthera chlorantha f. lancifolia (Rohlena) Soó | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. metabifolia (F.Maek.) M.Hiroe | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. montana (F.W.Schmidt) Nyman | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. orientalis Schltr. | Synonym |  | WCSP | 
	
		| Platanthera chlorantha subsp. orientalis (Schltr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera chlorantha var. wankelii (Rchb.) Nyman | Synonym |  | WCSP | 
	
		| Platanthera chloranthella Nakai | Synonym |  | WCSP | 
	
		| Platanthera chorisiana (Cham.) Rchb.f. | Accepted |  | WCSP | 
	
		| Platanthera chorisiana var. elata Finet | Synonym |  | WCSP | 
	
		| Platanthera ciliaris (L.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera ciliaris var. blephariglottis (Willd.) Chapm. | Synonym |  | WCSP | 
	
		| Platanthera citrina (Thouars) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera clavellata (Michx.) Luer | Accepted |  | WCSP | 
	
		| Platanthera clavellata var. ophioglossoides (Fernald) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera clavellata f. slaughteri P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera clavigera Lindl. | Accepted |  | WCSP | 
	
		| Platanthera colemanii (Rand.Morgan & Glic.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera commelinifolia (Roxb.) Lindl. ex Wall. | Synonym |  | WCSP | 
	
		| Platanthera commelinifolia (Roxb.) Lindl. | Synonym |  | TRO | 
	
		| Platanthera conopsea (L.) Schltr. ex Matsum. | Synonym |  | TRO | 
	
		| Platanthera conspicua (Nash) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera constricta Lindl. ex Wall. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera contigua Tang & F.T.Wang | Synonym |  | WCSP | 
	
		| Platanthera convallariifolia (Fisch. ex Lindl.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera convallariifolia var. dilatatoides Hultén | Synonym |  | WCSP | 
	
		| Platanthera cooperi (S.Watson) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera cordifolia Lindl. ex Wall. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera cornu-bovis Nevski | Synonym |  | WCSP | 
	
		| Platanthera × correllii W.J.Schrenk [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera crassinervia (Ames & C.Schweinf.) J.J.Sm. | Accepted |  | WCSP | 
	
		| Platanthera crispa Lindl. [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera cristata (Michx.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera cristata f. straminea P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera cubitalis (L.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera cumminsiana (King & Pantl.) Renz | Accepted |  | WCSP | 
	
		| Platanthera curvata K.Y.Lang | Accepted |  | WCSP | 
	
		| Platanthera cylindrica Bach.Pyl. | Synonym |  | WCSP | 
	
		| Platanthera damingshanica K.Y.Lang & H.S.Guo | Accepted |  | WCSP | 
	
		| Platanthera decipiens Lindl. | Synonym |  | WCSP | 
	
		| Platanthera deflexilabella K.Y.Lang | Accepted |  | WCSP | 
	
		| Platanthera delavayi Schltr. | Synonym |  | WCSP | 
	
		| Platanthera densa Freyn | Accepted |  | WCSP | 
	
		| Platanthera densa (Wall. ex Lindl.) Soó [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera densa subsp. orientalis (Schltr.) Efimov | Synonym |  | WCSP | 
	
		| Platanthera dentata (Sw.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera devolii (T.P.Lin & T.W.Hu) T.P.Lin & K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera dielsiana Soó | Synonym |  | WCSP | 
	
		| Platanthera dilatata (Pursh) Lindl. ex L.C.Beck | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. albiflora (Cham.) Ledeb. | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. angustifolia Hook. | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. chlorantha Hultén | Synonym |  | WCSP | 
	
		| Platanthera dilatata subsp. convallariifolia (Fisch. ex Lindl.) Soó | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. gracilis Ledeb. | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. leucostachys (Lindl.) Luer | Synonym |  | WCSP | 
	
		| Platanthera dilatata var. leucostachys (Lindl.) Hultén | Synonym |  | TRO | 
	
		| Platanthera dilatata var. viridiflora (Cham.) Ledeb. | Synonym |  | WCSP | 
	
		| Platanthera diphylla (Link) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera ditmariana Kom. | Synonym |  | WCSP | 
	
		| Platanthera ditmariana f. longibracteata Miyabe & Kudo | Synonym |  | WCSP | 
	
		| Platanthera dolichorrhiza (Fisch. ex Lindl.) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera dyerana (King & Pantl.) Pradhan | Synonym |  | TRO | 
	
		| Platanthera dyeriana (King & Pantl.) Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera edgeworthii (Hook.f. ex Collett) R.K.Gupta | Accepted |  | WCSP | 
	
		| Platanthera edgeworthii (Hook. f. ex Collett) K.Y. Lang | Synonym |  | TRO | 
	
		| Platanthera elachyantha Tang & F.T.Wang [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera elegans Lindl. | Synonym |  | WCSP | 
	
		| Platanthera elegans subsp. decurtata (Rand.Morgan & Glic.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera elegans subsp. maritima (Rydb.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera elliptica J.J.Sm. | Accepted |  | WCSP | 
	
		| Platanthera elmeri (Ames) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera elongata (Rydb.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera engleriana (Kraenzl.) Rolfe | Synonym |  | WCSP | 
	
		| Platanthera × enigma P.M.Br. | Accepted |  | WCSP | 
	
		| Platanthera ephemerantha R.M.Bateman | Unresolved |  | WCSP (in review) | 
	
		| Platanthera epiphytica Aver. & Efimov | Accepted |  | WCSP | 
	
		| Platanthera × erdingeri (A.Kern.) A.Kern. | Synonym |  | WCSP | 
	
		| Platanthera × estesii W.J.Schrenk [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera × evansiana P.M.Br. | Unresolved |  | WCSP (in review) | 
	
		| Platanthera exelliana Soó | Accepted |  | WCSP | 
	
		| Platanthera extremiorientalis Nevski | Synonym |  | WCSP | 
	
		| Platanthera fallax (Lindl.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera fargesii Schltr. ex Soó | Unresolved |  | TRO | 
	
		| Platanthera fimbriata (Aiton) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera fimbriata var. grandiflora (Bigelow) Hook. | Synonym |  | WCSP | 
	
		| Platanthera finetiana Schltr. | Accepted |  | WCSP | 
	
		| Platanthera fissa (Muhl. ex Willd.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera flava (L.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera flava var. flava | Accepted |  | WCSP | 
	
		| Platanthera flava var. herbiola (R.Br.) Luer | Accepted |  | WCSP | 
	
		| Platanthera flava f. lutea (Louis-Marie ex B.Boivin) R.E.Whiting & Catling | Synonym |  | WCSP | 
	
		| Platanthera florentia Franch. & Sav. | Accepted |  | WCSP | 
	
		| Platanthera foetida Geyer ex Hook. | Synonym |  | WCSP | 
	
		| Platanthera foliosa Brongn. | Synonym |  | WCSP | 
	
		| Platanthera × folsomii P.M.Br. | Unresolved |  | WCSP (in review) | 
	
		| Platanthera freynii Kraenzl. [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera friesii Schltr. | Synonym |  | WCSP | 
	
		| Platanthera fuscescens (L.) Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera fuscescens var. orientalis Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera galeandra Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera garberi (Porter) Chapm. | Synonym |  | WCSP | 
	
		| Platanthera geniculata (D.Don) Lindl. ex Wall. | Synonym |  | WCSP | 
	
		| Platanthera geniculata (D. Don) Lindl. | Synonym |  | TRO | 
	
		| Platanthera gerrardii (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera ghiesbreghtiana A.Rich. & Galeotti [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera gibbsiae Rolfe | Accepted |  | WCSP | 
	
		| Platanthera gigantea (Sm.) Lindl. ex Wall. | Synonym |  | WCSP | 
	
		| Platanthera glaberrima (Ridl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera glossophora (W.W.Sm.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera gracilis (Ledeb.) Kraenzl. [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera gracilis Lindl. | Synonym |  | WCSP | 
	
		| Platanthera × graebneri (M.Schulze) Domin | Synonym |  | WCSP | 
	
		| Platanthera graminea Lindl. [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera grandiflora (Bigelow) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera grandiflora f. albiflora (E.L.Rand & Redfield) Catling | Synonym |  | WCSP | 
	
		| Platanthera grandiflora f. bicolor P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera grandiflora f. carnea P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera grandiflora f. mentotonsa (Fernald) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera gratissima Bach.Pyl. [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera guatemalensis Schltr. | Synonym |  | WCSP | 
	
		| Platanthera hachijoensis Honda | Synonym |  | WCSP | 
	
		| Platanthera halconensis (Ames) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera handel-mazzettii K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera hawkesiana (King & Pantl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera helferi (Rchb.f.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera helleborina (Hook.f.) Rolfe | Synonym |  | WCSP | 
	
		| Platanthera henryi (Rolfe) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera henryi (Rolfe) Rolfe | Synonym |  | TRO | 
	
		| Platanthera herbiola Lindl. | Synonym |  | WCSP | 
	
		| Platanthera herminioides Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera heyneana Lindl. | Accepted |  | WCSP | 
	
		| Platanthera hispidula (Rendle) Gilg | Synonym |  | WCSP | 
	
		| Platanthera × hollandiae Catling & Brownell | Accepted |  | WCSP | 
	
		| Platanthera holmboei H.Lindb. | Accepted |  | WCSP | 
	
		| Platanthera holochila (Hillebr.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera hologlottis Maxim. | Accepted |  | WCSP | 
	
		| Platanthera hologlottis var. glossophora (W.W.Sm.) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera holopetala Lindl. | Synonym |  | WCSP | 
	
		| Platanthera hondoensis (Ohwi) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera hookeri (Torr.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera hookeri f. abbreviata (Fernald) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera hookeri var. abbreviata (Fernald) W.J.Schrenk | Synonym |  | WCSP | 
	
		| Platanthera hookeri var. oblongifolia C.N.Paine | Synonym |  | WCSP | 
	
		| Platanthera hookeri f. oblongifolia (C.N.Paine) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera horsfieldii (Blume) Náves | Synonym |  | WCSP | 
	
		| Platanthera huronensis Lindl. | Accepted |  | WCSP | 
	
		| Platanthera × hybrida Brügger | Accepted |  | WCSP | 
	
		| Platanthera × hybrida var. graebneri M.Schulze | Synonym |  | WCSP | 
	
		| Platanthera hyperborea (L.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera hyperborea f. alba M.H.S.Light | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. convallariifolia (Fisch. ex Lindl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera hyperborea subsp. dilatata (Pursh) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. dilatata (Pursh) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera hyperborea subsp. dilatata (Pursh) K. Richt. | Synonym |  | TRO | 
	
		| Platanthera hyperborea var. dilatatoides Hultén | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. gracilis (Lindl.) Luer | Synonym |  | WCSP | 
	
		| Platanthera hyperborea subsp. graminea Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. huronensis (Nutt.) Luer | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. leucostachys (Lindl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. major Lange | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. makinoi (Y.Yabe) Takeda | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. minor Lange | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. purpurascens (Rydb.) Luer | Synonym |  | WCSP | 
	
		| Platanthera hyperborea var. viridiflora (Cham.) Luer | Synonym |  | WCSP | 
	
		| Platanthera iantha Wight | Synonym |  | WCSP | 
	
		| Platanthera iinumae Makino | Accepted |  | WCSP | 
	
		| Platanthera incisa (Spreng.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera inhambanensis Schltr. | Synonym |  | WCSP | 
	
		| Platanthera inscripta Ridl. | Unresolved |  | TRO | 
	
		| Platanthera integra (Nutt.) A.Gray ex L.C.Beck | Accepted |  | WCSP | 
	
		| Platanthera integrilabia (Correll) Luer | Accepted |  | WCSP | 
	
		| Platanthera interrupta Maxim. | Synonym |  | WCSP | 
	
		| Platanthera iriomotensis Masam. | Synonym |  | WCSP | 
	
		| Platanthera islandica (Lindl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera japonica (Thunb.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera japonica var. minor Miq. | Synonym |  | WCSP | 
	
		| Platanthera juncea (King & Pantl.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera × keenanii P.M.Br. [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera keiskei (Miq.) Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera × kelleyi P.M.Br. | Unresolved |  | WCSP (in review) | 
	
		| Platanthera kinabaluensis Kraenzl. ex Rolfe | Accepted |  | WCSP | 
	
		| Platanthera koenigii (Gunnerus) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera komarovii Schltr. | Accepted |  | WCSP | 
	
		| Platanthera kuenkelei H.Baumann | Synonym |  | WCSP | 
	
		| Platanthera kwangsiensis K.Y.Lang | Accepted |  | WCSP | 
	
		| Platanthera lacei Rolfe ex Downie | Synonym |  | WCSP | 
	
		| Platanthera lacera (Michx.) G.Don | Accepted |  | WCSP | 
	
		| Platanthera lacera var. terrae-novae (Fernald) Luer | Synonym |  | WCSP | 
	
		| Platanthera lalashaniana S.S.Ying | Synonym |  | WCSP | 
	
		| Platanthera lancifolia (Rohlena) A.W.Hill | Synonym |  | WCSP | 
	
		| Platanthera lancilabris Schltr. | Accepted |  | WCSP | 
	
		| Platanthera × lassenii W.J.Schrenk [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera latilabris Lindl. | Accepted |  | WCSP | 
	
		| Platanthera lefeburiana (A.Rich.) Engl. | Synonym |  | WCSP | 
	
		| Platanthera leptocaulon (Hook.f.) Soó | Accepted |  | WCSP | 
	
		| Platanthera leptocaulon (Hook. f.) T. Tang & F.T. Wang | Synonym |  | TRO | 
	
		| Platanthera leptopetala (Rydb.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera leucophaea (Nutt.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera leucostachys Lindl. | Synonym |  | WCSP | 
	
		| Platanthera likiangensis Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera limosa Lindl. | Accepted |  | WCSP | 
	
		| Platanthera lindleyi Steud. | Synonym |  | WCSP | 
	
		| Platanthera linifolia Lindl. | Unresolved |  | TRO | 
	
		| Platanthera listeroides Takeda | Synonym |  | WCSP | 
	
		| Platanthera longibracteata Lindl. | Accepted |  | WCSP | 
	
		| Platanthera longibracteata Hayata [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera longicalcarata Hayata | Accepted |  | WCSP | 
	
		| Platanthera longicalcarata var. devolii (T.P. Lin & T.W. Hu) S.S. Ying | Synonym |  | TRO | 
	
		| Platanthera longifolia A. Rich. & Galeotti | Unresolved |  | TRO | 
	
		| Platanthera longiglandula K.Y.Lang | Accepted |  | WCSP | 
	
		| Platanthera lucida Lindl. ex Wall. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera × lueri P.M.Br. | Accepted |  | WCSP | 
	
		| Platanthera lutea Wight | Synonym |  | WCSP | 
	
		| Platanthera macowaniana (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera macrophylla (Goldie) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera madagascariensis Schltr. [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera madagascariensis (Rolfe) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera major (Besser) Linding. | Synonym |  | WCSP | 
	
		| Platanthera makinoi Y.Yabe | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum Rchb.f. | Accepted |  | WCSP | 
	
		| Platanthera mandarinorum var. amamiana (Ohwi) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum f. australis (Ohwi) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum f. brachycentron (Franch. & Sav.) M.Hiroe | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. brachycentron (Franch. & Sav.) Koidz. ex K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. cornu-bovis (Nevski) Kitag. | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. cornu-bovis (Nevski) Ke. Inoue | Synonym |  | TRO | 
	
		| Platanthera mandarinorum var. delavayi (Schltr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum f. elongatocalcarata Koidz. | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. formosana T.P.Lin & K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera mandarinorum var. formosana (T.P. Lin & K.Inoue) S.S. Ying | Synonym |  | TRO | 
	
		| Platanthera mandarinorum f. hachijoensis (Honda) M.Hiroe | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. hachijoensis (Honda) Ohwi | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. hachijoensis (Honda) Murata | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. macrocentron (Franch. & Sav.) Ohwi | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. mandarinorum | Accepted |  | WCSP | 
	
		| Platanthera mandarinorum var. masamunei K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum f. maximowicziana (Schltr.) M.Hiroe | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. maximowicziana (Schltr.) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. maximowicziana (Schltr.) Ohwi | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. monophylla (Honda) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum f. monophylla (Honda) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. neglecta (Schltr.) F.Maek. | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. ophrydioides (F.Schmidt) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. ophrydioides (F.Schmidt) Finet | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum var. ophryodes Finet | Synonym |  | TRO | 
	
		| Platanthera mandarinorum var. oreades (Franch. & Sav.) Koidz. | Synonym |  | WCSP | 
	
		| Platanthera mandarinorum subsp. pachyglossa (Hayata) T.P.Lin & K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera mandarinorum subsp. winkleriana (Schltr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera mannii (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera manubriata Kraenzl. ex Diels | Synonym |  | WCSP | 
	
		| Platanthera marginata (Colebr.) Lindl. ex Wall. | Synonym |  | WCSP | 
	
		| Platanthera marginata (Colebr.) Lindl. | Synonym |  | TRO | 
	
		| Platanthera matsudae Makino | Synonym |  | WCSP | 
	
		| Platanthera matsumurana Schltr. | Synonym |  | WCSP | 
	
		| Platanthera maximowicziana Schltr. | Accepted |  | WCSP | 
	
		| Platanthera mearnsii (Ames) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera media (Rydb.) Luer | Synonym |  | WCSP | 
	
		| Platanthera menziesii Lindl. | Synonym |  | WCSP | 
	
		| Platanthera metabifolia F.Maek. | Synonym |  | WCSP | 
	
		| Platanthera michaelii (Greene) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera michauxii (Nutt.) Alph.Wood | Synonym |  | WCSP | 
	
		| Platanthera micrantha (Hochst.) Schltr. | Accepted |  | WCSP | 
	
		| Platanthera micrantha var. longibracteata (Hochst.) Soó | Synonym |  | WCSP | 
	
		| Platanthera minax Schltr. | Synonym |  | WCSP | 
	
		| Platanthera minor (Miq.) Rchb.f. | Accepted |  | WCSP | 
	
		| Platanthera minor var. mikurensis Hid.Takah. | Synonym |  | WCSP | 
	
		| Platanthera minutiflora Schltr. | Accepted |  | WCSP | 
	
		| Platanthera × mixta Efimov | Accepted |  | WCSP | 
	
		| Platanthera monorrhiza (Sw.) W.J.Schrenk | Synonym |  | WCSP | 
	
		| Platanthera montana (F.W.Schmidt) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera montana var. gselliana H.Baumann, Künkele & R.Lorenz | Synonym |  | WCSP | 
	
		| Platanthera montana subsp. holmboei (H.Lindb.) Ströhle | Synonym |  | WCSP | 
	
		| Platanthera montana var. lancifolia Rohlena | Synonym |  | WCSP | 
	
		| Platanthera multibracteata (W.W.Sm.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera nankotaizanensis (Masam.) Masam. | Synonym |  | WCSP | 
	
		| Platanthera natalensis (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera neglecta Schltr. | Synonym |  | WCSP | 
	
		| Platanthera nematocaulon (Hook.f.) Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera neottianthoides (T.Tang & F.T.Wang) R.M.Bateman & P.J.Cribb | Unresolved |  | WCSP (in review) | 
	
		| Platanthera neottioides A.Rich. & Galeotti | Synonym |  | WCSP | 
	
		| Platanthera neuropetala (Miq.) Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera nipponica Makino | Synonym |  | WCSP | 
	
		| Platanthera nivea (Nutt.) Luer | Accepted |  | WCSP | 
	
		| Platanthera nubigena A. Rich. & Galeotti | Unresolved |  | TRO | 
	
		| Platanthera obcordata Lindl. ex Wall. | Synonym |  | WCSP | 
	
		| Platanthera obcordata (Buch.-Ham. ex D. Don) Lindl. | Synonym |  | TRO | 
	
		| Platanthera obtusata (Banks ex Pursh) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera obtusata var. collectanea (Fernald) W.J.Schrenk | Synonym |  | WCSP | 
	
		| Platanthera obtusata f. collectanea (Fernald) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera obtusata f. foliosa P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera obtusata subsp. obtusata | Accepted |  | WCSP | 
	
		| Platanthera obtusata subsp. oligantha (Turcz.) Hultén | Accepted |  | WCSP | 
	
		| Platanthera × okubo-hachijoensis K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera okuboi Makino | Accepted |  | WCSP | 
	
		| Platanthera oligantha Turcz. | Synonym |  | WCSP | 
	
		| Platanthera omeiensis (Rolfe) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera ophiocephala (W.W.Sm.) Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera ophrydioides F.Schmidt | Accepted |  | WCSP | 
	
		| Platanthera ophrydioides var. amabilis (Koidz.) Masam. | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides var. australis Ohwi | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides f. australis (Ohwi) Makino | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides var. monophylla Honda | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides f. monophylla (Honda) Makino | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides subsp. platycorys (Schltr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides var. takedae (Makino) Ohwi | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides subsp. takedae (Makino) Soó | Synonym |  | WCSP | 
	
		| Platanthera ophrydioides var. uzenensis Ohwi | Synonym |  | WCSP | 
	
		| Platanthera × ophryotipuloides K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera opsimantha Tang & F.T.Wang | Synonym |  | WCSP | 
	
		| Platanthera orbiculata (Pursh) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera orbiculata var. lehorsii (Fernald) W.J.Schrenk | Synonym |  | WCSP | 
	
		| Platanthera orbiculata f. lehorsii (Fernald) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera orbiculata f. longifolia (Clute) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera orbiculata var. macrophylla (Goldie) Luer | Accepted |  | WCSP | 
	
		| Platanthera orbiculata var. orbiculata | Accepted |  | WCSP | 
	
		| Platanthera orbiculata f. pauciflora (Jenn.) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera orbiculata f. trifolia (Mousley) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera orchidis Lindl. ex Wall. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera oreades Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera oreades var. brachycentron Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera oreades var. macrocentron Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera oreophila Schltr. | Accepted |  | WCSP | 
	
		| Platanthera × osceola P.M.Br. & S.L.Stewart | Accepted |  | WCSP | 
	
		| Platanthera ovata (Lindl.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera pachycaulon (Hook.f.) Soó | Accepted |  | WCSP | 
	
		| Platanthera pachyglossa Hayata | Synonym |  | WCSP | 
	
		| Platanthera pallida P.M.Br. | Accepted |  | WCSP | 
	
		| Platanthera papuana Schltr. | Accepted |  | WCSP | 
	
		| Platanthera parvula Schltr. | Synonym |  | WCSP | 
	
		| Platanthera peichatieniana S.S.Ying | Accepted |  | WCSP | 
	
		| Platanthera peramoena A.Gray | Accepted |  | WCSP | 
	
		| Platanthera peramoena f. doddsiae P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera pervia Peterm. | Synonym |  | WCSP | 
	
		| Platanthera petitiana (A.Rich.) Engl. | Synonym |  | WCSP | 
	
		| Platanthera platantheroides K.Y.Lang [Illegitimate] | Synonym |  | WCSP | 
	
		| Platanthera platycorys Schltr. | Synonym |  | WCSP | 
	
		| Platanthera pleistophylla (Rchb. f.) Schltr. | Synonym |  | TRO | 
	
		| Platanthera praeclara Sheviak & M.L.Bowles | Accepted |  | WCSP | 
	
		| Platanthera praeustipetala Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera preussii Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera pricei Hayata | Synonym |  | WCSP | 
	
		| Platanthera psycodes (L.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera psycodes f. albiflora (R.Hoffm.) R.E.Whiting & Catling | Synonym |  | WCSP | 
	
		| Platanthera psycodes f. ecalcarata (M.M.Bryan) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera psycodes f. fernaldii (J.Rousseau & Rouleau) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera psycodes var. grandiflora (Bigelow) Torr. | Synonym |  | WCSP | 
	
		| Platanthera psycodes f. rosea P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera psycodes f. varians (M.M.Bryan) P.M.Br. | Synonym |  | WCSP | 
	
		| Platanthera pugionifera (W.W.Sm.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera purpurascens (Rydb.) Sheviak & W.F.Jenn. | Accepted |  | WCSP | 
	
		| Platanthera quartiniana (A.Rich.) Engl. | Synonym |  | WCSP | 
	
		| Platanthera quercicola Alph.Wood [Unplaced] | Unresolved |  | WCSP | 
	
		| Platanthera radiata (Thunb.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera reinii Franch. & Sav. | Synonym |  | WCSP | 
	
		| Platanthera repens (Nutt.) Alph.Wood | Synonym |  | WCSP | 
	
		| Platanthera replicata (A.Rich.) Ackerman | Accepted |  | WCSP | 
	
		| Platanthera × reznicekii Catling, Brownell & G.Allen | Accepted |  | WCSP | 
	
		| Platanthera rhodostachys Schltr. | Synonym |  | WCSP | 
	
		| Platanthera rhynchocarpa Thwaites | Synonym |  | WCSP | 
	
		| Platanthera robinsonii J.J.Sm. | Accepted |  | WCSP | 
	
		| Platanthera robusta Lindl. | Synonym |  | WCSP | 
	
		| Platanthera roseotincta (W.W.Sm.) Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera rostrata Lindl. ex Wall. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera rotundifolia (Banks ex Pursh) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera rumphii Brongn. | Synonym |  | WCSP | 
	
		| Platanthera saccata (Greene) Hultén | Synonym |  | WCSP | 
	
		| Platanthera sachalinensis F.Schmidt | Accepted |  | WCSP | 
	
		| Platanthera sachalinensis var. hondoensis Ohwi | Synonym |  | WCSP | 
	
		| Platanthera saprophytica J.J.Sm. | Accepted |  | WCSP | 
	
		| Platanthera satyrioides Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera schischmareffiana (Cham.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera schuriana Fuss | Synonym |  | WCSP | 
	
		| Platanthera setchuenica Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera shensiana (Kraenzl.) Tang & F.T.Wang | Synonym |  | WCSP | 
	
		| Platanthera shriveri P.M.Br. | Accepted |  | WCSP | 
	
		| Platanthera sigeyosii Masam. | Synonym |  | WCSP | 
	
		| Platanthera sigmoidea Maek. | Synonym |  | WCSP | 
	
		| Platanthera sikkimensis (Hook.f.) Kraenzl. | Accepted |  | WCSP | 
	
		| Platanthera sikkimensis (Hook. f.) Pradhan | Synonym |  | TRO | 
	
		| Platanthera silaensis Hand.-Mazz. | Synonym |  | WCSP | 
	
		| Platanthera sinica Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera × smithii P.M.Br. | Unresolved |  | WCSP (in review) | 
	
		| Platanthera solstitialis Boenn. ex Drejer | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. brachyglossa (Wallr.) Nyman | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. densiflora Drejer | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. latiflora Drejer | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. patula Drejer | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. pervia (Peterm.) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. pervia (Peterm.) Nyman | Synonym |  | TRO | 
	
		| Platanthera solstitialis var. subalpina (Brügger) M.Schulze | Synonym |  | WCSP | 
	
		| Platanthera solstitialis var. trifoliata Thielens | Synonym |  | WCSP | 
	
		| Platanthera sonoharae Masam. | Accepted |  | WCSP | 
	
		| Platanthera sororia Schltr. | Synonym |  | WCSP | 
	
		| Platanthera souliei Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera sparsiflora (S.Watson) Schltr. | Accepted |  | WCSP | 
	
		| Platanthera sparsiflora var. brevifolia (Greene) Luer | Synonym |  | WCSP | 
	
		| Platanthera sparsiflora var. ensifolia (Rydb.) Luer | Synonym |  | WCSP | 
	
		| Platanthera stapfii Kraenzl. ex Rolfe | Accepted |  | WCSP | 
	
		| Platanthera stenantha (Hook.f.) Soó | Accepted |  | WCSP | 
	
		| Platanthera stenantha subsp. omeiensis Soó | Synonym |  | WCSP | 
	
		| Platanthera stenoglossa Hayata | Accepted |  | WCSP | 
	
		| Platanthera stenoglossa subsp. iriomotensis (Masam.) K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera stenoglossa subsp. stenoglossa | Accepted |  | WCSP | 
	
		| Platanthera stenophylla Tang & F.T.Wang | Accepted |  | WCSP | 
	
		| Platanthera stenosepala Schltr. | Synonym |  | WCSP | 
	
		| Platanthera stenostachya Lindl. ex Benth. | Synonym |  | WCSP | 
	
		| Platanthera stricta Lindl. | Accepted |  | WCSP | 
	
		| Platanthera stricta var. gracilis (Lindl.) Hultén | Synonym |  | WCSP | 
	
		| Platanthera subalpina Brügger | Synonym |  | WCSP | 
	
		| Platanthera subulifera (W.W.Sm.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera sumatrana Schltr. | Synonym |  | WCSP | 
	
		| Platanthera susannae (L.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera taiwanensis (S.S. Ying) X.Qi Chen, S.W. Gale & P.J. Cribb | Accepted |  | TRO | 
	
		| Platanthera taiwaniana S.S. Ying | Accepted |  | TRO | 
	
		| Platanthera takedae Makino | Accepted |  | WCSP | 
	
		| Platanthera takedae subsp. uzenensis (Ohwi) K.Inoue | Accepted |  | WCSP | 
	
		| Platanthera tenuior (Rchb.f.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera tescamnis Sheviak & W.F.Jenn. | Accepted |  | WCSP | 
	
		| Platanthera tipuloides (L.f.) Lindl. | Accepted |  | WCSP | 
	
		| Platanthera tipuloides var. behringiana (Rydb.) Hultén | Accepted |  | WCSP | 
	
		| Platanthera tipuloides var. linearifolia Ohwi | Synonym |  | WCSP | 
	
		| Platanthera tipuloides subsp. linearifolia (Ohwi) K.Inoue | Synonym |  | WCSP | 
	
		| Platanthera tipuloides f. nipponica (Makino) M.Hiroe | Synonym |  | WCSP | 
	
		| Platanthera tipuloides subsp. nipponica (Makino) Murata | Synonym |  | WCSP | 
	
		| Platanthera tipuloides var. nipponica (Makino) Ohwi | Synonym |  | WCSP | 
	
		| Platanthera tipuloides var. sibirica Regel | Synonym |  | WCSP | 
	
		| Platanthera tipuloides var. sororia (Schltr.) Soó | Synonym |  | WCSP | 
	
		| Platanthera tipuloides var. tipuloides | Accepted |  | WCSP | 
	
		| Platanthera tipuloides var. ussuriensis Regel | Synonym |  | WCSP | 
	
		| Platanthera transnokoensis Ohwi & Fukuy. | Synonym |  | WCSP | 
	
		| Platanthera transversa (Suksd.) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera tricruris A.Rich. | Synonym |  | WCSP | 
	
		| Platanthera tricruris (Rchb. f.) Hochst. ex Rchb. f. | Synonym |  | TRO | 
	
		| Platanthera tridentata (Hook.f.) Engl. | Synonym |  | WCSP | 
	
		| Platanthera triflora (D.Don) Pradhan | Synonym |  | WCSP | 
	
		| Platanthera triflora var. multiflora Pradhan | Synonym |  | WCSP | 
	
		| Platanthera truncatolabellata Hayata | Synonym |  | WCSP | 
	
		| Platanthera unalascensis (Spreng.) Kurtz | Synonym |  | WCSP | 
	
		| Platanthera unalascensis subsp. elata (Jeps.) R.L.Taylor & MacBryde | Synonym |  | WCSP | 
	
		| Platanthera unalascensis subsp. maritima (Greene) De Filipps | Synonym |  | WCSP | 
	
		| Platanthera unalaschcensis (Spreng.) Kurtz | Synonym |  | TRO | 
	
		| Platanthera unalaschkensis (Spreng.) Kraenzl. | Synonym |  | TRO | 
	
		| Platanthera uncata Rolfe | Synonym |  | WCSP | 
	
		| Platanthera undulata J.J.Sm. | Accepted |  | WCSP | 
	
		| Platanthera uniflora (Buch.-Ham. ex D.Don) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera uniformis Tang & F.T.Wang | Synonym |  | WCSP | 
	
		| Platanthera urceolata (Hook.f.) R.M.Bateman | Unresolved |  | WCSP (in review) | 
	
		| Platanthera ussuriensis (Regel) Maxim. | Accepted |  | WCSP | 
	
		| Platanthera uzenensis (Ohwi) Maek. [Invalid] | Synonym |  | WCSP | 
	
		| Platanthera virescens K.Koch | Synonym |  | WCSP | 
	
		| Platanthera virginea Bolus | Synonym |  | WCSP | 
	
		| Platanthera viricimaculata Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera viridis (L.) Lindl. | Synonym |  | WCSP | 
	
		| Platanthera viridis var. bracteata (Muhl. ex Willd.) Rchb.f. | Synonym |  | WCSP | 
	
		| Platanthera volkensiana Kraenzl. | Synonym |  | WCSP | 
	
		| Platanthera × vossii F.W.Case | Accepted |  | WCSP | 
	
		| Platanthera vulcanica Lindl. | Synonym |  | WCSP | 
	
		| Platanthera wankelii Rchb. | Synonym |  | WCSP | 
	
		| Platanthera winkleriana Schltr. | Synonym |  | WCSP | 
	
		| Platanthera yadonii (Rand.Morgan & Ackerman) R.M.Bateman | Synonym |  | WCSP | 
	
		| Platanthera yakumontana Masam. | Accepted |  | WCSP | 
	
		| Platanthera yangmeiensis T.P.Lin | Accepted |  | WCSP | 
	
		| Platanthera yatabei Maxim. | Unresolved |  | TRO | 
	
		| Platanthera yosemitensis Colwell, Sheviak & P.E.Moore | Accepted |  | WCSP | 
	
		| Platanthera zeyheri (Sond.) Schltr. | Synonym |  | WCSP | 
	
		| Platanthera zothecina (L.C.Higgins & S.L.Welsh) Kartesz & Gandhi | Accepted |  | WCSP |