Isolepis setacea (Linnaeus) R. Brown (Q3272)
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Isolepis setacea is a taxon with the rank species within the genus Isolepis
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English |
Isolepis setacea (Linnaeus) R. Brown
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Isolepis setacea is a taxon with the rank species within the genus Isolepis
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Statements
taxon/id/Isolepis setacea (Linnaeus) R. Brown
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Isolepis setacea (Linnaeus) R. Brown
Isolepis setacea
(Linnaeus) R. Brown
FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
accepted
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CA-BC
present
introduced
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Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
CA-BC
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US-CA
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US-WA
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Plants perennial (annual?), forming dense mats;
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rhizomes creeping;
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culms, leaves, and bracts orange-punctate at 10–15X.
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Culms 3–25 cm × 0.2–0.3 mm.
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Leaves: sheaths usually reddish proximally;
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distal blade rudimentary to 6 cm × 0.2–0.5 mm.
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Inflorescences: involucral-bracts 1 or 2;
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proximal bract erect to spreading, 3–10 (–20) mm;
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distal bract reflexed, to 5 mm.
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Spikelets 3–6 × 2 mm;
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scales partly orange to red or blackish brown, midrib greenish to stramineous, not gibbous, prominently ribbed near midrib, often with 1+ pale veins on dark sides, 1.2–1.6 × 0.6–1 mm, membranous, hyaline, apex rounded to obtuse, mucro to 0.1 mm;
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Flowers: anthers 0.3–0.5 mm;
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styles 3-fid or 3-fid and 2-fid.
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Achenes falling separately from floral scales, orangebrown, each face prominently longitudinally 5–8-ribbed, many fine transverse ridges evident at 20–30X, broadly obovoid to oblong, thickly biconvex to compressedtrigonous, abaxial angle obscure, lateral angles prominent, faces convex, 0.8–1 × 0.5 mm. 2n = 28.
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partly orange
red or blackish brown
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5-8-ribbed
prominently longitudinally
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