Carex tenera Dewey

Quill sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants densely cespitose. Culms often nodding, 20–90 cm, vegetative culms inconspicuous with few leaves clustered at apex. Leaves: sheaths abaxially hyaline, adaxially whitish mottled, summits U-shaped, shortly prolonged less than 2.8 mm beyond collar, smooth or sometimes papillose (at 30X); distal ligules 1–2 mm; blades 3–5 per fertile culm, 15–35 cm × 1.3–2.5(–3) mm. Inflorescences often flexible and nodding, open, with elongate spikes, brown, (2–)2.5–5 cm × 7–10 mm; proximal internode (4–)7–17(–20) mm; 2d internode (3–)6–10 mm; proximal bracts scalelike or to 1(–4) cm; rachis usually thin and wiry. Spikes 3–8, distant or loosely aggregated, ovoid to globose, 4–10 × 3.5–6 mm, base tapered or clavate, apex rounded. Pistillate scales white-hyaline or pale brown with green to brown midstripe not reaching scale tip, proximal scales ovate, 2.3–3.3 mm, shorter by 0–1.6 mm and narrower than perigynia, apex obtuse on proximal scales, acute on distal. Perigynia erect to ascending, brown, conspicuously 5–7-veined abaxially, veinless or faintly 3–7-veined adaxially, ovate to broadly ovate, plano-convex, 2.8–4(–4.5) × 1.4–1.9(–2) mm, 0.4–0.5 mm thick, 2–2.3 times as long as wide, margin flat, including wing 0.1–0.5 mm wide, ciliate-serrulate at least distally; beak spreading, appressed or ascending; straw colored to reddish brown at tip, flat, ± ciliate-serrulate, abaxial suture inconspicuous, distance from beak tip to achene 1.3–2.7 mm. Achenes ovate, 1.3–1.7 × 0.85–1.1 mm, 0.5 mm thick. 2n = 52, 54, 56.
More
Much like no. 74 [Carex bebbii (L. H. Bailey) Fernald]; lvs 1.5–2.5 mm wide; spikes mostly 4–8(–12), in a usually moniliform or interrupted spike 1.5–5 cm, the individual spikes a little stouter and more ragged-looking than in C. bebbii; perigynia 2.8–4(–4.3) × 1.4–1.9 mm, (1.5–)1.7–2.5(–3) times as long as wide, planoconvex or flattened, achene 1.3–2.1 × 0.9–1.3 mm; 2n=56. Moist or wet soil, meadows, and thickets; Que. and Me. to N.C., w. to Mo., S.D., and Mont.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.8
Root system fibrous-root
Rooting depth (meter) 0.2
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 2-3
Soil humidity 5-5
Soil texture -
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Carex tenera unspecified picture

Distribution

Carex tenera world distribution map, present in Åland Islands, Canada, Colombia, Micronesia (Federated States of), Malaysia, Nicaragua, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:302580-1
WFO ID wfo-0000351879
COL ID RC82
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex tenera Diemisa tenera Carex straminea var. tenera Carex mirabilis var. tenera Carex tenera var. major Carex tenera var. tenera