| Hierochloe alpina (Sw.) Roem. & Schult. | Accepted |  | WCSP | 
	
		| Hierochloe alpina var. alpina | Synonym |  | TRO | 
	
		| Hierochloe alpina f. alpina | Synonym |  | TRO | 
	
		| Hierochloe alpina subsp. alpina | Synonym |  | TRO | 
	
		| Hierochloe alpina var. aristata Raspail | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. intermedia Hack. | Synonym |  | WCSP | 
	
		| Hierochloe alpina f. monstruosa (Koidz.) Ohwi | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. monstruosa Koidz. | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. monstruosus Koidz. | Synonym |  | TRO | 
	
		| Hierochloe alpina subsp. orthantha (T.J.Sørensen) G.Weim. | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. orthantha (T.J. Sørensen) Hultén | Synonym |  | TRO | 
	
		| Hierochloe alpina var. recurvata (Cheeseman) Zotov | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. sajanensis Reverd. | Synonym |  | WCSP | 
	
		| Hierochloe alpina f. soperi Polunin | Synonym |  | WCSP | 
	
		| Hierochloe alpina var. submutica (F.Muell.) Kirk | Synonym |  | WCSP | 
	
		| Hierochloe altissima Steud. | Synonym |  | WCSP | 
	
		| Hierochloe angusta Hitchc. | Synonym |  | WCSP | 
	
		| Hierochloe annulata Petrov [Invalid] | Synonym |  | WCSP | 
	
		| Hierochloe antarctica (Labill.) R.Br. | Synonym |  | WCSP | 
	
		| Hierochloe antarctica var. brunonis (Hook.f.) Zotov | Synonym |  | WCSP | 
	
		| Hierochloe antarctica var. redolens (Vahl) Brongn. | Synonym |  | WCSP | 
	
		| Hierochloe arctica J.Presl | Synonym |  | WCSP | 
	
		| Hierochloe arenaria Steud. | Synonym |  | WCSP | 
	
		| Hierochloe aristata Wulfen | Synonym |  | WCSP | 
	
		| Hierochloe australis (Schrad.) Roem. & Schult. | Accepted |  | WCSP | 
	
		| Hierochloe baltica (G.Weim.) Czerep. | Synonym |  | WCSP | 
	
		| Hierochloe banksiana Endl. | Synonym |  | WCSP | 
	
		| Hierochloe borealis (Schrad.) Roem. & Schult. | Synonym |  | WCSP | 
	
		| Hierochloe borealis var. fragrans Hartm. | Synonym |  | WCSP | 
	
		| Hierochloe borealis var. fragrans Hartman | Synonym |  | TRO | 
	
		| Hierochloe brunonis Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe bungeana Trin. | Synonym |  | WCSP | 
	
		| Hierochloe clarkei Hook.f. | Synonym |  | WCSP | 
	
		| Hierochloe cuprea Zotov | Accepted |  | WCSP | 
	
		| Hierochloe dahurica Trin. | Synonym |  | WCSP | 
	
		| Hierochloe davidsei R.W.Pohl | Accepted |  | WCSP | 
	
		| Hierochloe dregeana Nees ex Trin. | Synonym |  | WCSP | 
	
		| Hierochloe dregei Nees [Illegitimate] | Synonym |  | WCSP | 
	
		| Hierochloe ecklonii (Nees ex Trin.) Nees | Synonym |  | WCSP | 
	
		| Hierochloe elongata Hand.-Mazz. | Synonym |  | WCSP | 
	
		| Hierochloe equiseta Zotov | Accepted |  | WCSP | 
	
		| Hierochloe flexuosa Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe fragrans (Willd.) Roem. & Schult. | Synonym |  | WCSP | 
	
		| Hierochloe fraseri Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe fraseri var. recurvata Hack. | Synonym |  | WCSP | 
	
		| Hierochloe fusca Zotov | Accepted |  | WCSP | 
	
		| Hierochloe glabra Trin. | Accepted |  | WCSP | 
	
		| Hierochloe glabra subsp. bungeana (Trin.) Peschkova | Synonym |  | WCSP | 
	
		| Hierochloe glabra subsp. chakassica Peschkova | Synonym |  | WCSP | 
	
		| Hierochloe glabra var. grandiflora Litv. | Synonym |  | WCSP | 
	
		| Hierochloe glabra subsp. kamtschatica Prob. | Synonym |  | WCSP | 
	
		| Hierochloe glabra subsp. sachalinensis (Printz) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe glabra subsp. sibirica (Tzvelev) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe glauca Gliem. ex Bab. [Invalid] | Synonym |  | WCSP | 
	
		| Hierochloe gracillima Hook.f. | Synonym |  | WCSP | 
	
		| Hierochloe grandiflora (Litv.) Petrov | Synonym |  | WCSP | 
	
		| Hierochloe gunckelii Parodi | Accepted |  | WCSP | 
	
		| Hierochloe helenae Prob. | Accepted |  | WCSP | 
	
		| Hierochloe hirta (Schrank.) Borbás | Synonym |  | WCSP | 
	
		| Hierochloe hirta var. annulata (Petrov) Vilyasoo | Synonym |  | WCSP | 
	
		| Hierochloe hirta subsp. arctica (J.Presl) G.Weim. | Synonym |  | WCSP | 
	
		| Hierochloe hirta subsp. praetermissa G.Weim. | Synonym |  | WCSP | 
	
		| Hierochloe hookeri (Griseb.) Maxim. | Synonym |  | WCSP | 
	
		| Hierochloe horsfieldii (Benn.) Maxim. | Synonym |  | WCSP | 
	
		| Hierochloe intermedia (Hack.) Kawano | Synonym |  | WCSP | 
	
		| Hierochloe jacutica Drobow ex Kom. [Invalid] | Synonym |  | WCSP | 
	
		| Hierochloe japonica Maxim. | Synonym |  | WCSP | 
	
		| Hierochloe juncifolia (Hack.) Parodi | Accepted |  | WCSP | 
	
		| Hierochloe kamtschatica (Prob.) Prob. | Synonym |  | WCSP | 
	
		| Hierochloe khasiana C.B.Clarke ex Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe latifolia (L.) Kunth | Synonym |  | WCSP | 
	
		| Hierochloe laxa Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe longifolia Reeder | Synonym |  | WCSP | 
	
		| Hierochloe macrophylla Thurb. ex Bol. | Synonym |  | WCSP | 
	
		| Hierochloe magellanica (Desr.) Hook.f. | Synonym |  | WCSP | 
	
		| Hierochloe magellanica Hook. f. | Synonym |  | TRO | 
	
		| Hierochloe magellanica Hook. f. ex Steud. | Synonym |  | TRO | 
	
		| Hierochloe mexicana (E.Fourn.) Hitchc. | Accepted |  | WCSP | 
	
		| Hierochloe monstruosa (Koidz.) Honda | Synonym |  | WCSP | 
	
		| Hierochloe monticola Mez | Synonym |  | WCSP | 
	
		| Hierochloe monticola (Bigelow) Á.Löve & D.Löve [Illegitimate] | Synonym |  | WCSP | 
	
		| Hierochloe moorei De Paula | Synonym |  | WCSP | 
	
		| Hierochloe nashii (C.Bicknell) Kaczm. | Synonym |  | WCSP | 
	
		| Hierochloe novae-zelandiae Gand. | Accepted |  | WCSP | 
	
		| Hierochloe occidentalis Buckley | Accepted |  | WCSP | 
	
		| Hierochloe ochotensis Prob. | Synonym |  | WCSP | 
	
		| Hierochloe odorata (L.) P.Beauv. | Accepted |  | WCSP | 
	
		| Hierochloe odorata (L.) Wahlenb. | Synonym |  | TRO | 
	
		| Hierochloe odorata var. annulata Petrov | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. arctica (C.Presl) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe odorata var. aristata (Lam. & DC.) Fiori | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. baltica G.Weim. | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. dahurica (Trin.) Printz | Synonym |  | WCSP | 
	
		| Hierochloe odorata f. eamesii Fernald | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. fragrans (Willd.) K.Richt. | Synonym |  | WCSP | 
	
		| Hierochloe odorata var. fragrans (Willd.) K. Richt. | Synonym |  | TRO | 
	
		| Hierochloe odorata subsp. glabra (Trin.) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. hirta (Schrank) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. kolymensis Prob. | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. odorata | Synonym |  | TRO | 
	
		| Hierochloe odorata f. odorata | Synonym |  | TRO | 
	
		| Hierochloe odorata subsp. pannonica Chrtek & V.Jirásek | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. pannonica Chrtek & Jirasek | Synonym |  | TRO | 
	
		| Hierochloe odorata subsp. praetermissa (G.Weim.) B.Walln. | Synonym |  | WCSP | 
	
		| Hierochloe odorata f. pubescens Krylov | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. pubescens (Krylov) T.Koyama | Synonym |  | WCSP | 
	
		| Hierochloe odorata var. pubescens Krylov | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. sachalinensis (Printz) Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe odorata var. sachalinensis Printz | Synonym |  | WCSP | 
	
		| Hierochloe odorata subsp. sibirica Tzvelev | Synonym |  | WCSP | 
	
		| Hierochloe odorata var. sibirica Tzvelev | Synonym |  | TRO | 
	
		| Hierochloe odorata var. trautvetteriana Petrov | Synonym |  | WCSP | 
	
		| Hierochloe orientalis Fr. & Heuff. | Synonym |  | WCSP | 
	
		| Hierochloe orthantha T.J.Sørensen | Synonym |  | WCSP | 
	
		| Hierochloe pallida Hand.-Mazz. | Synonym |  | WCSP | 
	
		| Hierochloe parviflora C.Presl [Unplaced] | Unresolved |  | WCSP | 
	
		| Hierochloe pauciflora R.Br. | Accepted |  | WCSP | 
	
		| Hierochloe pauciflora f. pauciflora | Synonym |  | TRO | 
	
		| Hierochloe pauciflora f. setigera Lepage | Synonym |  | WCSP | 
	
		| Hierochloe pluriflora Koidz. | Accepted |  | WCSP | 
	
		| Hierochloe pluriflora subsp. intermedia (Hack.) T.Koyama | Synonym |  | WCSP | 
	
		| Hierochloe pluriflora var. intermedia (Hack.) Ohwi | Synonym |  | WCSP | 
	
		| Hierochloe potaninii Tzvelev | Accepted |  | WCSP | 
	
		| Hierochloe pusilla Hack. | Accepted |  | WCSP | 
	
		| Hierochloe quebrada Connor & Renvoize | Accepted |  | TRO | 
	
		| Hierochloe racemosa Trin. | Synonym |  | WCSP | 
	
		| Hierochloe rariflora Hook.f. | Accepted |  | WCSP | 
	
		| Hierochloe recurvata (Hack. ex Cheeseman) Zotov | Accepted |  | WCSP | 
	
		| Hierochloe redolens (Vahl) Roem. & Schult. | Accepted |  | WCSP | 
	
		| Hierochloe redolens R. Br. ex Hook. f. | Synonym |  | TRO | 
	
		| Hierochloe redolens var. fraseri (Hook.f.) Benth. | Synonym |  | WCSP | 
	
		| Hierochloe redolens var. magellanica (Hook.f.) Macloskie | Synonym |  | WCSP | 
	
		| Hierochloe redolens var. major Speg. | Synonym |  | WCSP | 
	
		| Hierochloe redolens var. micrantha Parodi | Synonym |  | WCSP | 
	
		| Hierochloe redolens var. redolens | Synonym |  | TRO | 
	
		| Hierochloe redolens var. submutica (F. Muell.) Benth. | Synonym |  | TRO | 
	
		| Hierochloe repens (Host) P.Beauv. | Accepted |  | WCSP | 
	
		| Hierochloe sachalinensis Vorosch. | Accepted |  | TRO | 
	
		| Hierochloe sibirica (Tzvelev) Czerep. | Synonym |  | WCSP | 
	
		| Hierochloe sikkimensis Maxim. | Synonym |  | WCSP | 
	
		| Hierochloe sorianoi De Paula | Synonym |  | WCSP | 
	
		| Hierochloe spicata Parodi | Accepted |  | WCSP | 
	
		| Hierochloe stepporum P.A.Smirn. | Synonym |  | WCSP | 
	
		| Hierochloe submutica F.Muell. | Accepted |  | WCSP | 
	
		| Hierochloe tenuis (Trin.) T.Durand & Schinz | Synonym |  | WCSP | 
	
		| Hierochloe teretifolia Steud. [Unplaced] | Unresolved |  | WCSP | 
	
		| Hierochloe tibetica Bor | Accepted |  | WCSP | 
	
		| Hierochloe tongo (Trin.) Nees | Synonym |  | WCSP | 
	
		| Hierochloe tongo var. minor Nees | Synonym |  | WCSP | 
	
		| Hierochloe tongo var. simplex Nees | Synonym |  | WCSP | 
	
		| Hierochloe trautvetteriana Petrov [Invalid] | Synonym |  | WCSP | 
	
		| Hierochloe utriculata (Ruiz & Pav.) Kunth | Accepted |  | WCSP | 
	
		| Hierochloe utriculata var. juncifolia Hack. | Synonym |  | WCSP | 
	
		| Hierochloe utriculata var. minor É.Desv. | Synonym |  | WCSP | 
	
		| Hierochloe utriculata var. utriculata | Synonym |  | TRO | 
	
		| Hierochloe vinealis Schur | Synonym |  | WCSP | 
	
		| Hierochloe wendelboi G.Weim. | Accepted |  | WCSP | 
	
		| Hierochloe wrangelica Yurtsev & Prob. | Synonym |  | WCSP | 
	
		| Hierochloe × zinserlingii Tzvelev | Accepted |  | WCSP |