Scirpus pallidus |
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pale bulrush |
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Habit | Plants cespitose; rhizomes short. |
Leaves | 20–55 cm × 8–16 mm. |
Inflorescences | terminal; branches ascending and drooping. |
Spikes | aggregated in a few dense clusters of 12–130; spikes sessile, narrowly ovoid, 4–5 × 1.8–2.3 mm; floral scales 1.6–2.8 mm; black or brownish black with pale midribs; apex with awn 0.4–0.6(1.2) mm. |
Flowers | perianth bristles persistent, 6; rather stout; straight or curved; longest bristles equaling achene, with retrorse teeth in distal 0.3–0.5, enclosed within floral scales; stigmas 3. |
Achenes | plumply trigonous or plano-convex, 0.8–1.2 × 0.4–0.6 mm. |
2n | =56. |
Scirpus pallidus |
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Distribution | |
Discussion | Marshes, streamsides, ditches. 0–700 m. BW. ID, WA; north to British Columbia, east to PA, southeast to TX. Native. Scirpus pallidus is similar to introduced S. georgianus, which has reduced perianth bristles. |
Source | Flora of Oregon, volume 1, page 254 Barbara Wilson, Richard Brainerd, Nick Otting |
Sibling taxa | |
Web links |
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