Difference between revisions of "Poa sect. Alpinae"
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name=Poa sect. Alpinae | name=Poa sect. Alpinae | ||
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|authority=(Hegetschw. ex Nyman) Stapf | |authority=(Hegetschw. ex Nyman) Stapf | ||
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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; not rhizomatous, not stoloniferous. Basal branching intravaginal. Culms 10-40 cm, terete. Leaves mostly basal; sheaths closed for 1/2 - 2/7 their length, terete, basal sheaths persistent, bases usually not swollen; blades flat, moderately thick, soft, straight, apices prow-shaped. Panicles 2-6(8) cm, erect, ovoid to pyramidal, open or loosely contracted at maturity; nodes with 1-2 branches; branches 1-3(4) cm, ascending to spreading, straight, terete, smooth or very sparsely scabrous, rarely moderately scabrous. Spikelets ovate, laterally compressed, occasionally bulbiferous; florets usually normal, bisexual. Glumes broadly lanceolate to narrowly ovate, shorter than to subequal to the adjacent lemmas, keeled, keels sparsely scabrous; lower glumes 3-veined; calluses terete, glabrous; lemmas broadly lanceolate, keeled, keels and marginal veins short- to long-villous, intercostal regions glabrous or sparsely to moderately short-villous; palea keels mostly softly puberulent to short-villous, scabrous distally; anthers 3, 1.3-2.3 mm.
Discussion
Poa sect. Alpinae includes seven species. They are all cespitose perennials with intravaginal branching and broad leaves. One species is circumboreal; the other six are native to Europe.
Selected References
None.