Carex gmelinii Hook. & Arn.

Gmelin's sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Rhizome obliquely ascending, stoloniferous. Culms densely tufted, 20-60 cm tall, scabrous above, clothed at base with dark purple bladeless sheaths disintegrating into reticulate fibers. Leaves shorter than culm, blades linear or broadly linear, 3-7 mm wide, slightly firm. Involucral bracts leafy, nearly sheathless. Spikes 3-8, terminal 3 approximate, sessile, lower ones distant and with a peduncle, lowest peduncle 2-3 cm, ± pendent or erect; terminal spike gynaecandrous, rarely male, oblong, 2-3 cm; lateral spikes female, oblong, 1.5-3 cm. Female glumes dark purple-red or black-purple, ovate, margins narrowly white hyaline, 1-3-veined costa forming a scabrous long awn at apex. Utricles yellowish green, becoming pale brown, longer than glume, ovate or subobovate, trigonous, 4-5 mm, membranous, densely finely granular, 6-8-veined, base stipitate, apex abruptly contracted into a short ferruginous scarcely emarginate or entire beak. Nutlets loosely enveloped, obovate, trigonous, slightly compressed; style base not thickened; stigmas 3.
More
Plants densely cespitose. Culms 20–60 cm, distally scabrous. Leaves 2–4 mm wide. Inflorescences: proximal bracts equaling or exceeding inflorescences; spikes separate, short-oblong or elongate, 10–30 × 5–10 mm; proximal spikes sometimes spreading, long-pendunculate; distal spikes erect, short-pendunculate; lateral 2–4 spikes pistillate, contiguous, of similar length; terminal spike gynecandrous. Pistillate scales dark brown or black to margins, lanceolate, slightly shorter, equaling, or exceeding and as broad as perigynia, midvein lighter colored than body, conspicuous, raised, prominent, mucronate. Perigynia ascending, brown, vein, elliptic, 3.5–5 × 2–3 mm, apex gradually or abruptly beaked, smooth; beak 0.2–0.3 mm, truncate or obscurely bidentate, smooth. Achenes nearly filling body of perigynia. 2n = ca. 62.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality -
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Spread -
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Mature height (meter) 0.2 - 0.6
Root system rhizome
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Flower color
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

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Hardiness (USDA) 5-10

Usage

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Edible -
Therapeutic use -
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Animal toxicity -

Cultivation

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Distribution

Carex gmelinii world distribution map, present in Canada, China, Japan, Korea (Democratic People's Republic of), and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:299969-1
WFO ID wfo-0000347086
COL ID R9G2
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Carex acrolepis Carex gmelinii Carex laticuspis