Scirpus ancistrochaetus Schuyler (Q3369)
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Scirpus ancistrochaetus is a taxon with the rank species within the genus Scirpus
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English |
Scirpus ancistrochaetus Schuyler
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Scirpus ancistrochaetus is a taxon with the rank species within the genus Scirpus
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Statements
taxon/id/Scirpus ancistrochaetus Schuyler
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Scirpus ancistrochaetus Schuyler
Scirpus ancistrochaetus
Schuyler
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-QC
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Tardif, B., B. Tremblay, G. Jolicoeur & J. Labrecque. 2016. Les plantes vasculaires en situation précaire au Québec. CDPNQ, Gouv. Québec, MDDELCC, Direction de l'expertise en biodiversité, Québec, 420 p. http://www.cdpnq.gouv.qc.ca/pdf/plantesVasculairesWeb.pdf
CA-QC
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US-MD
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US-MA
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US-NH
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US-NY
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US-PA
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US-VT
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US-VA
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US-WV
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100–1100 m
100 meter
1,100 meter
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rhizomes brownish, short, tough, fibrous.
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Culms: fertile ones upright or reclining;
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Leaves 5–9 per culm;
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sheaths of proximal leaves green to whitish or brown;
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proximal sheaths and blades with septa many, conspicuous;
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blades 32–68 cm × 7–13 (–16) mm.
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Inflorescences terminal, rarely also with 1 lateral inflorescence from distal leaf-axil;
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rays all arching or sometimes 1 or 2 ascending, distal branches scabrous, proximal branches smooth, rarely scabrellous, rays sometimes with axillary bulblets;
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bases of involucral-bracts green, margins usually speckled with redbrown, not glutinous.
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Spikelets in clusters of 2–18 (largest cluster with 8 or more), spikelets sessile, ovoid to narrowly ovoid, 3–5 × 2–3 mm;
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scales brown or blackish brown with greenish midribs, elliptic, 1.5–2.5 mm, apex slightly mucronate, mucro 0.05–0.1 (–0.2) mm.
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Flowers: perianth bristles persistent, 6, stout, straight or curved, slightly shorter to slightly longer than achene, with retrorse, thick-walled, sharp-pointed teeth densely arranged in distal 0.6–0.9, enclosed within scales;
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Achenes pale-brown, elliptic to obovate in outline, planoconvex, 1.1–1.7 × 0.6–0.8 mm. 2n = 54.
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