Poa
Family: Poaceae
Poa image
  • Gleason & Cronquist
  • Resources
Vascular plants of NE US and adjacent Canada
Spikelets 2-several-fld, ±compressed laterally, disarticulating above the glumes and between the lemmas; glumes lanceolate to ovate, acute or subacute, 3-veined or the first 1-veined; lemma in most spp. keeled, often scarious at the margins and tip, generally 5-veined (but the intermediate veins obscure or obsolete in some spp.), often with a tuft of long, cobwebby hairs (called a web) at the base; uppermost florets reduced, unisexual or vestigial; rachilla in a few spp. finely puberulent or scaberulous, otherwise glabrous; lvs ending in a boat-shaped tip; panicles open or contracted, the branches generally in fascicles of 2-5, sometimes more. 150+, widespread, mostly temp. and boreal. Many of the spp. confluent through polyploid (often apomictic) forms.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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Species within inventory project: Intermountain Regional Herbarium Network
Poa alpina
Image of Poa alpina
Poa annua
Image of Poa annua
Poa arctica
Image of Poa arctica
Poa arida
Image of Poa arida
Poa arnowiae
Image of Poa arnowiae
Poa bigelovii
Image of Poa bigelovii
Poa bolanderi
Image of Poa bolanderi
Poa bulbosa
Image of Poa bulbosa
Poa chambersii
Image of Poa chambersii
Poa compressa
Image of Poa compressa
Poa curta
Image of Poa curta
Poa fendleriana
Image of Poa fendleriana
Poa glauca
Image of Poa glauca
Poa keckii
Image of Poa keckii
Poa leibergii
Image of Poa leibergii
Poa leptocoma
Image of Poa leptocoma
Poa lettermanii
Image of Poa lettermanii
Poa nervosa
Image of Poa nervosa
Poa palustris
Image of Poa palustris
Poa pratensis
Image of Poa pratensis
Poa pringlei
Image of Poa pringlei
Poa reflexa
Image of Poa reflexa
Poa secunda
Image of Poa secunda
Poa trivialis
Image of Poa trivialis
Poa wheeleri
Image of Poa wheeleri