Poaceae

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Dissections:
Vulpia octoflora

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VULPIA Gmel.
Plants hermaphroditic, caespitose, annual. Culms erect or decumbent, glabrous; internodes hollow or solid, terete. Leaves basal or cauline, not distichous; sheaths terete, margins open; auricles absent; ligules membranous; blades flat or involute (filiform). Panicles or racemes, primary branches spreading or ascending or appressed. Spikelets solitary, laterally compressed; disarticulation above glumes, mucronate or awned, pedicellate; florets 3-15, reduced floret at apex, callus glabrous; glumes 2, first 1-veined and second 3-veined, unequal, shorter than first floret, glabrous, mucronate or awned; lemmas inconspicuously 5-veined, chartaceous, glabrous or scabrous, apex entire, mucronate or awned from apex, awns straight; paleas 2-veined, awnless, glabrous. Stamens 1 (rarely 2-3); anthers pale yellow. Caryopses cylindrical. Base chromosome number x=7.

A genus of about 30 weedy species from temperate regions. Commonly these species occur in mesic to xeric habitats. These species are not important as livestock forage.