Carex tahoensis Smiley

Tahoe sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants densely cespitose. Culms 15–45 cm. Leaves: sheaths adaxially white-hyaline, summits usually U-shaped; distal ligules 0.8–1.5 mm; blades 3–5 per fertile culm, occasionally folded, if not folded, margins revolute, 5–10 cm × 1.5–2.5(–3) mm, thick, tough. Inflorescences dense to ± open, whitish, gold, or brown, (1.5–)2–3(–3.7) cm × 6–12 mm; proximal internode 4–11 mm; 2d internode 2.5–7 mm; proximal bracts scalelike or bristlelike, shorter than inflorescences. Spikes 4–6, distant, distinct, lanceloid to ovoid, 10–15 × 4–6 mm, base tapered to attenuate, apex rounded to acute. Pistillate scales red-brown, with straw colored to tan midstripe, usually ovate, to 4–5 mm, equaling, covering at least perigynium bodies, margin white, 0.2–0.6 mm wide, apex obtuse to short-awned. Perigynia appressed or appressed-ascending, green, gold, or coppery, conspicuously 7–14-veined abaxially, conspicuously 3–8-veined adaxially, lanceolate or ovate to oblanceolate or obovate, plano-convex, (3.7–)4.5–6 × 1.5–2.6 mm, 0.5–0.7(–0.9) mm thick, margin flat, including wing 0.2–0.4(–0.5) mm wide; beak brown to gold or reddish, often white-hyaline at tip, ± cylindric, ± ciliate-serrulate for distal 0.2–0.7 mm, abaxial suture with white margin, or sometimes inconspicuous, distance from beak tip to achene (0.6–)1–2 mm. Achenes lanceolate to ovate or obovate, 1.9–2.4 × 1.2–1.6 mm, 0.5–0.7 mm thick.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.45
Root system -
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Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 1-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Images

Carex tahoensis unspecified picture

Distribution

Carex tahoensis world distribution map, present in Canada, Colombia, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:47248-2
WFO ID wfo-0000351818
COL ID 69CDT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Carex eastwoodiana Carex tahoensis Carex phaeocephala f. eastwoodiana