Eragrostis secundiflora |
Eragrostis |
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lovegrass |
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Habit | Plants annual or perennial; cespitose, stoloniferous or rhizomatous; sometimes with saucer-like glands on culms, leaves, inflorescence branches, lemmas and/or paleas. | |
Culms | sometimes rooting at the lower nodes, sometimes branched above the base. |
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Leaves | sheaths open with tufts of hairs at the tops; hairs 0.3–8 mm; ligules usually membranous and ciliate; the cilia sometimes longer than the membranous base, occasionally consisting of hairs only or of non-ciliate membranes; blades flat, folded, or involute. |
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Inflorescences | terminal and sometimes axillary open to contracted panicles. |
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Spikelets | laterally compressed; (1)2–60 florets, cleistogamous spikelets occasionally present on the axillary or terminal panicles; disarticulation below the fertile florets; the glumes sometimes deciduous; the paleas sometimes persistent; acropetal or irregular. |
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Glumes | 2, usually shorter than the adjacent lemmas, 1(3)-veined; tips obtuse to acute; awnless. |
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Caryopses | brown, often translucent. |
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Calluses | glabrous or sparsely pubescent. |
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Lemmas | glabrous; (1)3(5)-veined, usually keeled; tips obtuse to acute; awnless or mucronate. |
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Paleas | 2-keeled; the keels usually ciliate. |
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Anthers | 2–3. |
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Eragrostis secundiflora |
Eragrostis |
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Distribution | ||
Discussion | Temperate, subtropical, and tropical regions worldwide. Approximately 350 species; 8 species treated in Flora. Several of Oregon’s Eragrostis species have glands on the culms, leaves, inflorescences branches, or spikelets. The glands may be discolored patches, or they may be “saucer-like” with raised edges. The glands give some species characteristic odors. |
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Source | Flora of Oregon, volume 1, page 403 Barbara Wilson, Richard Brainerd, Nick Otting |
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Sibling taxa | ||
Subordinate taxa | ||
Web links |
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