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Poa

L. (1753)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Poaceae Genus: Poa

Description

Key Characters:

Growth Form: Annuals, or if perennials, then usually stoloniferous or rhizomatous.

Stems: Culms erect to ascending.

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Blades flat, folded, or sometimes involute. Upper surfaces with 2 median lines, apex usually curved, boat-shaped, base +/- auriculate. Veins parallel. Sheaths partially to completely closed; ligule membranous or hyaline. Stipules absent.

Flowers: Inflorescence an open to contracted panicle, rarely reduced to a raceme; spikelets relatively small, (1-)2-8(-13)-flowered, disarticulating above the glumes and between the florets. Glumes relatively broad, rounded to keeled, usually shorter than first lemma, somewhat unequal, apex acute, first glume shorter than lemmas, l-3-nerved, second glume usually 3-nerved. Florets perfect or unisexual (and the plants dioecious to imperfectly dioecious). Lemmas membranous, rounded to keeled, usually somewhat scarious at summit and purple in a band near the middle, glabrous but more often scabrous to pubescent or pilose on the keel and marginal nerves, 5-nerved, the nerves converging, usually obscure, apex acute, rarely obtuse, base often with a tuft of cobwebby hairs; palea usually slightly shorter than lemma, the 2 keels often somewhat ciliolate. Stamens 3.

Fruit: Caryopsis ellipsoid; somewhat ventrally compressed.

Ploidy:

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Island Status

Dispersal Agents


Pollinators

Bibliography

Name Published In: Sp. Pl.: 67 (1753)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
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