Difference between revisions of "Poa subsect. Madropoa"
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|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Latest revision as of 16:25, 11 May 2021
Plants perennial; densely to loosely tufted, short- to long-rhizomatous and/or stoloniferous. Basal branching intra- and extravaginal. Culms (5)7-70 cm. Sheaths closed for 1/3 - 7/10 their length, terete or weakly keeled, distal sheaths usually longer than their blades; ligules 0.2-18 mm, usually scabrous, sometimes ciliolate; innovation blades adaxially smooth or scabrous, glabrous or hispidulous; cauline blades 0.5-4 mm wide, usually involute, sometimes flat or folded, thin to thick, soft to firm, apices narrowly prow-shaped. Panicles 1-15(30) cm, erect, usually contracted to loosely contracted and lanceolate to ovoid, infrequently open and broadly pyramidal, congested to sparse, nodes with 1-2 branches; branches 0.5-8 cm, terete or angled, smooth or scabrous, glabrous or densely hispidulous, with 1-17(25) spikelets. Spikelets 3-17 mm, lengths to 3 times widths, not bulbiferous; florets 2-7(13). Glumes lanceolate to broadly lanceolate; calluses glabrous, webbed, or with a crown of hairs; lemmas 2.5-11 mm, lanceolate, sometimes narrowly lanceolate, glabrous or hairy, 5-7(11)-veined, lateral veins moderately prominent to prominent; anthers 3, vestigial (0.1-0.2 mm) or 1.5-4(5) mm.
Discussion
The seven species of Poa subsect. Madropoa are strongly dioecious, usually rhizomatous, and usually have involute blades.
Selected References
None.