Carex intumescens Rudge

Greater bladder sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants cespitose or not, short-rhizomatous. Culms solitary or not, erect, (15–)30–80(–140) cm. Leaves 6–12; basal sheaths purplish red; sheath of distal leaf 0–1(–2.5) cm; ligules rounded, 1–8 mm; blades 8–27 cm × 3.5–8 mm. Inflorescences 2–15 cm; peduncles of proximal pistillate spikes 0.3–1.5 cm, basal 2 peduncles 0.2–2.1 cm apart; of terminal spike 0.5–4 cm; bracts leafy, sheathless, blades 6–21 × 2–6 mm. Spikes: proximal pistillate spikes 1–4, often closely aggregated and difficult to distinguish, 1–12-flowered, ovoid to obovoid, 1–2.7 × 1–2.8 cm; terminal staminate spike 1, 1–5 cm × 1–3 mm. Pistillate scales 1–3-veined, lanceolate-ovate to ovate, 4–9.5 × 2–3.8 mm, apex acute to awned, awns rough, to 6.5 mm. Anthers 3, 2–4 mm. Perigynia ascending to spreading or the basalmost reflexed, strongly 13–23-veined, lanceoloid to ovoid, 10–16.5 × 2.5–6.5 mm, with satiny luster, glabrous; beak poorly defined, 2–4.2 mm. Achenes sessile, ellipsoid to obovoid, flat to convex faces, angles not thickened, 3.5–5.7 × (2.2–)2.5–3.9 mm; style same texture as achene.
More
Much like no. 225 [Carex grayi J. Carey]; pistillate spikes 1–4, 1–2.7 cm long and wide, ovoid to obovoid, loosely fld, on peduncles to 1.5 cm, often closely aggregated; perigynia 1–12, mostly spreading or ascending, with a satiny lustre, 10–16.5 × 2.5–6.5 mm, convexly rounded to the base, the poorly defined beak 2–4.2 mm; achene 3.5–5.7 × 2.5–4 mm, with flat or convex faces; 2n=48. Moist or wet woods; Nf. to se. Man., s. to Fla. and Tex.
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 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 c3

Environment

Light 2-3
Soil humidity 7-8
Soil texture -
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses medicinal
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

Habit

Carex intumescens habit picture by Maarten Vanhove (cc-by-sa)
Carex intumescens habit picture by PT (cc-by-sa)

Leaf

Carex intumescens leaf picture by Benjamin Goron (cc-by-sa)
Carex intumescens leaf picture by Ken Borgfeldt (cc-by-sa)
Carex intumescens leaf picture by kathy gilbert (cc-by-sa)

Flower

Carex intumescens flower picture by Ken Borgfeldt (cc-by-sa)
Carex intumescens flower picture by Beth Fischer (cc-by-sa)
Carex intumescens flower picture by Dayna Hillcrest (cc-by-sa)

Fruit

Carex intumescens fruit picture by Dan Hribar (cc-by-sa)
Carex intumescens fruit picture by Renée-Louise Lamontagne (cc-by-sa)
Carex intumescens fruit picture by Seth Morris (cc-by-sa)

Distribution

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

Conservation status

Carex intumescens threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:300338-1
WFO ID wfo-0000347763
COL ID 5XBBW
BDTFX ID -
INPN ID 761915
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Carex intumescens f. ventriosa Carex intumescens f. intumescens Carex folliculata var. major Carex intumescens var. fernaldii Carex folliculata Carex intumescens var. intumescens Carex intumescens