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Inflorescences

Dissections:
Polypogon monspeliensis

Line drawings

POLYPOGON Desf.
Plants hermaphroditic, caespitose or rhizomatous or stoloniferous, annual or perennial. Culms erect or ascending or geniculate, nodes glabrous; internodes hollow, terete. Leaves cauline, not distinctly distichous; sheaths terete, margins open; auricles absent; ligules membranous; blades flat, lax. Panicles contracted, primary branches ascending (secondary branches appressed). Spikelets solitary, laterally compressed; disarticulation below glumes, awned, pedicellate; florets 1, reduced floret absent, callus glabrous; rachilla not extending above floret; glumes 2, both 1-veined, equal, longer than first floret, glabrous, awned (from entire or bifid apex); lemmas 5-veined, hyaline to membranous, glabrous, apex entire or bifid; awned or awnless, dorsal or from between lobes of bifid apex, awn glabrous; veins glabrous; paleas 2-veined, awnless, glabrous. Stamens 3; anthers pale yellow to tan. Caryopses adhering to lemma and palea, fusiform. Base chromosome number x=7.

A genus of about 18 species adapted to temperate regions. Our introduced species were native to Europe and/or Asia. Adapted to moist soils along streams, in meadows, and in marshes.