| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| POEP3 | Poa epilis Scribn. | Poa cusickii ssp. epilis | Poaceae
|
| POEY2 | Poa eyerdamii Hult�n | Poa palustris | Poaceae
|
| POFEA | Poa fendleriana (Steud.) Vasey ssp. albescens (A.S. Hitchc.) Soreng | muttongrass | Poaceae
|
| POFEF | Poa fendleriana (Steud.) Vasey ssp. fendleriana | muttongrass | Poaceae
|
| POFEL | Poa fendleriana (Steud.) Vasey ssp. longiligula (Scribn. & Williams) Soreng | muttongrass | Poaceae
|
| POFEL2 | Poa fendleriana (Steud.) Vasey var. longiligula (Scribn. & Williams) Gould | Poa fendleriana ssp. longiligula | Poaceae
|
| POFE | Poa fendleriana (Steud.) Vasey | muttongrass | Poaceae
|
| POFE2 | Poa fernaldiana Nannf. | Poa laxa ssp. fernaldiana | Poaceae
|
| POFI | Poa �fibrata Swallen (pro sp.) | Poa limosa | Poaceae
|
| POFI6 | Poa filifolia Vasey | Poa cusickii ssp. cusickii | Poaceae
|
| POFLF | Poa flexuosa Sm. ssp. fernaldiana (Nannf.) A.& D. L�ve | Poa laxa ssp. fernaldiana | Poaceae
|
| POFL10 | Poa flexuosa Muhl., non Sm. | Poa autumnalis | Poaceae
|
| POGLC3 | Poa glauca Vahl ssp. conferta (Blytt) Lindm. | Poa glauca ssp. glauca | Poaceae
|
| POGLG | Poa glauca Vahl ssp. glauca | glaucous bluegrass | Poaceae
|
| POGLG2 | Poa glauca Vahl ssp. glaucantha (Gaudin) Lindm. | Poa glauca ssp. glauca | Poaceae
|
| POGLR2 | Poa glauca Vahl ssp. rupicola (Nash ex Rydb.) W.A. Weber | timberline bluegrass | Poaceae
|
| POGLC | Poa glauca Vahl var. conferta (Blytt) Nannf. | Poa glauca ssp. glauca | Poaceae
|
| POGLL | Poa glauca Vahl var. laxiuscula (Blytt) Lindm. | Poa glauca ssp. glauca | Poaceae
|
| POGLR | Poa glauca Vahl var. rupicola (Nash ex Rydb.) Boivin | Poa glauca ssp. rupicola | Poaceae
|
| POGL | Poa glauca Vahl | glaucous bluegrass | Poaceae
|
| POGL2 | Poa glaucantha Gaudin | Poa glauca ssp. glauca | Poaceae
|
| POGL3 | Poa glaucifolia Scribn. & Williams ex Williams | Poa arida | Poaceae
|
| POGL11 | Poa glomerata Walt. | Eragrostis japonica | Poaceae
|
| POGL13 | Poa glutinosa Sw. | Eragrostis glutinosa | Poaceae
|
| POGRM | Poa gracillima Vasey var. multnomae (Piper) C.L. Hitchc. | Poa secunda | Poaceae
|
| POGR | Poa gracillima Vasey | Poa secunda | Poaceae
|
| POGR12 | Poa grayana Vasey | Poa arctica ssp. grayana | Poaceae
|
| POHA3 | Poa hansenii Scribn. | Poa cusickii ssp. cusickii | Poaceae
|
| POHAA | Poa hartzii Gandog. ssp. alaskana Soreng | Alaskan bluegrass | Poaceae
|
| POHA4 | Poa hartzii Gandog. | Hartz's bluegrass | Poaceae
|
| POHI9 | Poa hirsuta Michx. | Eragrostis hirsuta | Poaceae
|
| POHIA | Poa hispidula Vasey var. aleutica Hult�n | Poa macrocalyx | Poaceae
|
| POHIV | Poa hispidula Vasey var. vivipara Hult�n | Poa macrocalyx | Poaceae
|
| POHI | Poa hispidula Vasey | Poa macrocalyx | Poaceae
|
| POHO5 | Poa horneri St. John | Poa bolanderi | Poaceae
|
| POHO6 | Poa howellii Vasey & Scribn. | Howell's bluegrass | Poaceae
|
| POHY7 | Poa hypnoides Lam. | Eragrostis hypnoides | Poaceae
|
| POIN24 | Poa incurva Scribn. & Williams | Poa secunda | Poaceae
|
| POIN30 | Poa infirma Kunth | weak bluegrass | Poaceae
|
| POIN | Poa interior Rydb. | Poa nemoralis ssp. interior | Poaceae
|
| POIN2 | Poa involuta A.S. Hitchc. | Poa strictiramea | Poaceae
|
| POJO | Poa jordalii Porsild | Poa abbreviata ssp. pattersonii | Poaceae
|
| POJUP | Poa juncifolia Scribn. ssp. porteri Keck | Poa secunda | Poaceae
|
| POJUA | Poa juncifolia Scribn. var. ampla (Merr.) Dorn | Poa secunda | Poaceae
|
| POJU | Poa juncifolia Scribn. | Poa secunda | Poaceae
|
| POKE4 | Poa keckii Soreng | Keck's bluegrass | Poaceae
|
| POKE | Poa kelloggii Vasey | Kellogg's bluegrass | Poaceae
|
| POKI | Poa kingii S. Wats. | Leucopoa kingii | Poaceae
|
| POLA15 | Poa laevigata Scribn. | Poa secunda | Poaceae
|
| POLA | Poa lanata Scribn. & Merr. | Poa arctica ssp. lanata | Poaceae
|
| POLA2 | Poa languida A.S. Hitchc. | Poa saltuensis | Poaceae
|
| POLAB | Poa laxa Haenke ssp. banffiana Soreng | Banff bluegrass | Poaceae
|
| POLAF | Poa laxa Haenke ssp. fernaldiana (Nannf.) Hyl. | Fernald's bluegrass | Poaceae
|
| POLA10 | Poa laxa Haenke | Mt. Washington bluegrass | Poaceae
|
| POLA3 | Poa laxiflora Buckl. | looseflower bluegrass | Poaceae
|
| POLE | Poa leibergii Scribn. | Leiberg's bluegrass | Poaceae
|
| POLEP2 | Poa leptocoma Trin. ssp. paucispicula (Scribn. & Merr.) Tzvelev | Poa paucispicula | Poaceae
|
| POLEP | Poa leptocoma Trin. var. paucispicula (Scribn. & Merr.) C.L. Hitchc. | Poa paucispicula | Poaceae
|
| POLER | Poa leptocoma Trin. var. reflexa (Vasey & Scribn. ex Vasey) M.E. Jones | Poa reflexa | Poaceae
|
| POLE2 | Poa leptocoma Trin. | marsh bluegrass | Poaceae
|
| POLE3 | Poa lettermanii Vasey | Letterman's bluegrass | Poaceae
|
| POLI13 | Poa �limosa Scribn. & Williams (pro sp.) | Lassen County bluegrass | Poaceae
|
| POLOW | Poa longiligula Scribn. & Williams var. wyomingensis Williams | Poa nematophylla | Poaceae
|
| POLO | Poa longiligula Scribn. & Williams | Poa fendleriana ssp. longiligula | Poaceae
|
| POLO10 | Poa longipila Nash | Poa arctica ssp. arctica | Poaceae
|
| POMA26 | Poa macrantha Vasey | seashore bluegrass | Poaceae
|
| POMA2 | Poa macrocalyx Trautv. & C.A. Mey. | largeglume bluegrass | Poaceae
|
| POMA3 | Poa macroclada Rydb. | Poa stenantha | Poaceae
|
| POMA4 | Poa malacantha Komarov | Poa arctica ssp. lanata | Poaceae
|
| POMA5 | Poa mannii Munro ex Hbd. | Olokele Gulch bluegrass | Poaceae
|
| POMA6 | Poa marcida A.S. Hitchc. | withered bluegrass | Poaceae
|
| POME15 | Poa merrilliana A.S. Hitchc. | Poa paucispicula | Poaceae
|
| POME7 | Poa mexicana Hornem. | Eragrostis mexicana ssp. mexicana | Poaceae
|
| POMO | Poa montevansii L. Kelso | Poa lettermanii | Poaceae
|
| PONA | Poa napensis Beetle | Napa bluegrass | Poaceae
|
| PONA5 | Poa nascopieana Polunin | Poa glauca ssp. glauca | Poaceae
|
| PONE18 | Poa �nematophylla Rydb. (pro sp.) | | Poaceae
|
| PONEI2 | Poa nemoralis L. ssp. interior (Rydb.) W.A. Weber | inland bluegrass | Poaceae
|
| PONEN2 | Poa nemoralis L. ssp. nemoralis | wood bluegrass | Poaceae
|
| PONEI | Poa nemoralis L. var. interior (Rydb.) Butters & Abbe | Poa nemoralis ssp. interior | Poaceae
|
| PONE | Poa nemoralis L. | wood bluegrass | Poaceae
|
| PONEW | Poa nervosa (Hook.) Vasey var. wheeleri (Vasey) C.L. Hitchc. | Poa wheeleri | Poaceae
|
| PONE2 | Poa nervosa (Hook.) Vasey | Wheeler bluegrass | Poaceae
|
| PONEJ | Poa nevadensis Vasey ex Scribn. var. juncifolia (Scribn.) Beetle | Poa secunda | Poaceae
|
| PONE3 | Poa nevadensis Vasey ex Scribn. | Poa secunda | Poaceae
|
| PONI6 | Poa nitida Ell., non Lam. | Eragrostis elliottii | Poaceae
|
| PONO | Poa norbergii Hult�n | Poa macrocalyx | Poaceae
|
| POOC | Poa occidentalis Vasey | New Mexico bluegrass | Poaceae
|
| POOR4 | Poa orcuttiana Vasey | Poa secunda | Poaceae
|
| POPA27 | Poa pachypholis Piper | Poa unilateralis | Poaceae
|
| POPA | Poa paludigena Fern. & Wieg. | bog bluegrass | Poaceae
|
| POPA2 | Poa palustris L. | fowl bluegrass | Poaceae
|
| POPA3 | Poa pattersonii Vasey | Poa abbreviata ssp. pattersonii | Poaceae
|
| POPA26 | Poa paucispicula Scribn. & Merr. | Alaska bluegrass | Poaceae
|
| POPER | Poa pectinacea Michx. var. refracta (Muhl.) Chapman | Eragrostis refracta | Poaceae
|
| POPE15 | Poa pectinacea Michx. | Eragrostis pectinacea var. pectinacea | Poaceae
|
| POPH3 | Poa phryganodes Trin. | Puccinellia phryganodes ssp. phryganodes | Poaceae
|
| POPI8 | Poa pilosa L. | Eragrostis pilosa | Poaceae
|
| POPI2 | Poa piperi A.S. Hitchc. | Piper's bluegrass | Poaceae
|
| POPO9 | Poa porsildii Gjaerev. | Porsild's bluegrass | Poaceae
|
| POPRA | Poa pratensis L. ssp. agassizensis (Boivin & D. L�ve) Taylor & MacBryde | Poa pratensis ssp. pratensis | Poaceae
|