Carex squarrosa L.

Squarrose sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Stems 3–9 dm, rather stout, densely tufted, aphyllopodic; main lvs elongate, not clustered at base, 3–6 mm wide; ligule much longer than wide; spikes 1(–3), the lower third staminate, the pistillate part elliptic, 1–3 × 1–5.2 cm, rounded at both ends, very dense; lateral spikes, if present, pistillate, smaller, on erect short peduncles; bract of the terminal spike short and narrow, of the lateral ones foliaceous and elongate but not sheathing; staminate scales acute or acuminate; pistillate scales largely concealed, acuminate or short-awned; perigynia very numerous and crowded, squarrose-spreading, obconic or obconic-obovoid, inflated, the body 3.5–6 mm, its summit with 2 strong ribs and a few obscure nerves, the beak 2–3.5 mm, with teeth 0.2 mm; achene loosely enveloped, rather slenderly ellipsoid-trigonous, 2.2–3 mm, ca two-fifths as wide, the persistent style very strongly sinuous or abruptly bent below. Swampy woods and thickets; Conn. to N.C., w. to w. Que., se. Mich., Nebr., and Ark.
More
Plants cespitose, short-rhizomatous. Culms 30–80 cm. Leaves 3–5.7 mm wide, glabrous. Spikes 1–2(–3), erect; lateral spikes, if present, usually pistillate; terminal spike gynecandrous; staminate portion 5–18 × 1–3.5 mm; pistillate portion ovate or oblong, 11–35 × 12–20 mm. Pistillate scales 3–4.5 × 0.5–1.1 mm, apex sharply acute or with short, scabrous awn, hidden by perigynia. Staminate scales 3.5–7.1 × 1–2 mm, apex acute, sharp or blunt. Perigynia widely radiating, the proximal reflexed, 5.8–9.7 × 1.9–3.3 mm, smooth; beak 2.1–3.8 mm, usually smooth. Achenes sides often flat, 2.3–3 × 1.1–1.4 mm, 1.9–2.5 times as long as wide; style persistent, sinuous. 2n = 56.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.9
Root system -
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 5-6
Soil texture -
Soil acidity 4-7
Soil nutriment -
Hardiness (USDA) 4-7

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°) -35
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Carex squarrosa flower picture by max (cc-by-sa)

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:330927-2
WFO ID wfo-0000351488
COL ID RBYW
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex squarrosa Carex typhinoides Vignea squarrosa Carex squarrosa var. typhinoides Carex squarrosa f. robusta