Carex petricosa Dewey (Q88)
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Carex petricosa is a taxon with the rank species within the section Carex sect. Aulocystis
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English |
Carex petricosa Dewey
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Carex petricosa is a taxon with the rank species within the section Carex sect. Aulocystis
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Statements
taxon/id/Carex petricosa Dewey
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Carex petricosa Dewey
Carex petricosa
Dewey
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-AB
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CA-BC
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CA-NT
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CA-QC
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CA-YT
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US-AK
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US-MT
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Plants loosely cespitose;
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rhizomes slender, long.
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Leaves: blades 1–3.5 mm wide.
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Inflorescences 3–12 (–22) cm;
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proximal internodes 10–60 (–100) mm;
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peduncles of proximal spikes to 8 cm;
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proximal bracts with blades 5–140 mm, sheaths cylindric, 5–25 (–35) mm, mouth 0.9–1.5 mm wide.
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lateral spikes androgynous or pistillate, rarely some entirely staminate, the proximal inclined or pendent, 5–30 × 3–7 mm;
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terminal spike staminate or androgynous, 10–28 × 1.8–4 mm.
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Pistillate scales brown to black, oblong-obovate, 3–5.8 × 1.1–2 mm, apex obtuse to acute, sometimes shortly awned.
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Staminate scales brown or black with hyaline margins, oblongovate, 3.1–6.2 × 1–3 mm.
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Anthers 1.5–3 mm.
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Perigynia ascending, pale-yellow proximally, brown or black distally, 3–9-veined, lanceolate, 3.5–5.5 × 1.1–2.4 mm, margins ciliate-serrulate distally, apex tapered, shortly setose, sometimes setae confined to veins, or subglabrous;
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beak indistinct, to 0.5 (–1) mm.
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Achenes obovoid, 1.7–2.2 × 1–1.3 mm.
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