Bromus racemosus |
Bromus ciliatus |
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fringed brome |
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Habit | Plants perennial, 45–120(150) cm tall; loosely cespitose. | |
Culms | internodes glabrous; nodes (3)4–7(8), pubescent or the lower culms glabrous. |
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Leaves | basal sheaths retrorsely pilose, sometimes glabrous; upper sheaths glabrous; throats glabrous or pilose; ligules 0.4–1.4 mm; blades 13–25 cm × 4–10 mm; flat; lower surface glabrous, sometimes pilose; upper surface usually pilose, sometimes glabrous. |
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Inflorescences | 10–20 × approximately 12 cm; open, nodding; branches ascending, spreading, or drooping. |
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Spikelets | 15– 25 mm, elliptic to lanceolate; terete to moderately laterally compressed, with 4–9 florets. |
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Glumes | glabrous; lower glumes 5.5– 7.5 mm, 1(3)-veined; upper glumes 7.1–8.5 mm, 3-veined. |
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Lemmas | 9.5–14 mm, elliptic to lanceolate, rounded over the back; backs glabrous or scabrous; lower 50–67% of margins conspicuously hirsute; tips obtuse to acute; entire; lemma awns 2–4(5)mm; straight. |
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Anthers | 1.5–2 mm. |
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2n | =14. |
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Bromus racemosus |
Bromus ciliatus |
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Distribution | ||
Discussion | Moist montane meadows, thickets, woodlands, and stream banks. 1000–2000m. BR, BW, Casc, ECas. CA, ID, NV, WA; north to AK, east to Labrador and VA, south to Mexico. Native. Bromus ciliatus has long-hairy lemma margins like B. laevipes, however, the latter species has 5-veined upper glumes and longer anthers. |
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Source | Flora of Oregon, volume 1, page 370 Barbara Wilson, Richard Brainerd, Nick Otting |
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Sibling taxa | ||
Web links |
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