Carex buxbaumii Wahlenb.

Club sedge (en), Laîche de Buxbaum (fr)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Stems 3–10 dm, arising singly or few together from long creeping rhizomes, strongly aphyllopodic, not surrounded by old sheaths from previous years (but these often persistent separately from the new stems); lvs elongate, 2–4 mm wide; spikes mostly 2–5, approximate or somewhat remote, erect or closely ascending, sessile or (especially the lower) with ± well developed peduncle, the terminal one gynaecandrous, 1–3 cm, the lateral ones pistillate, about as long or somewhat shorter; bract subtending the lowest spike sheathless or nearly so, shorter to longer than the infl; pistillate scales lanceolate to lance-ovate, brown to purplish-black with a usually paler midrib, surpassing the perigynia, tapering to an awn-tip 0.5–3 mm; perigynia 2.7–4.3 mm, beakless or very shortly beaked, rather narrowly elliptic to elliptic-obovate or elliptic-ovate, firm-walled, not strongly papillate, light gray-green, densely papillate, 2-ribbed and with 6–8 inconspicuous or obscure nerves on each face; achene trigonous, somewhat narrower and much shorter than the perigynial cavity. 2n=74, ca 100, 106. Peat-bogs, marshes, wet meadows, and other wet places; circumboreal, s. to N.C., Ky., Ark., and Calif.
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Plants cespitose, long-rhizomatous. Culms 25–75 cm, distally scabrous. Leaves 2–3.5 mm wide. Inflorescences: proximal bracts shorter than, equaling, or exceeding inflorescences; spikes separate, erect, short-pendunculate, short-oblong or elongate, 10–25 × 6–10 mm; lateral 2–3(–4) spikes pistillate; terminal spike gynecandrous. Pistillate scales light to dark brown, lanceolate, shorter or much longer and narrower than perigynia, midvein lighter colored than body, conspicuous, often raised, prominent, apex acute or acuminate, mucronate, mucro 0.5–3 mm. Perigynia ascending, gray green or whitish, faintly veined, elliptic, 2.5–4 × 1.5–2 mm, apex beakless or abruptly beaked, densely papillose; beak to 0.2 mm. Achenes nearly filling body of perigynia. 2n = ca. 106.
A sedge. These grow in clumps and have grass like leaves and solid stalks.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread hydrochory
Mature width (meter) -
Mature height (meter) 0.6
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) 0.1
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. Tasmanian Herbarium.
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Wet spongy bogs and boggy meadows.
Light 3-9
Soil humidity 5-8
Soil texture 1-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible leaves roots seeds shoots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Habit

Carex buxbaumii habit picture by Yoan MARTIN (cc-by-sa)
Carex buxbaumii habit picture by Yoan MARTIN (cc-by-sa)

Fruit

Carex buxbaumii fruit picture by Yoan MARTIN (cc-by-sa)
Carex buxbaumii fruit picture by Yoan MARTIN (cc-by-sa)
Carex buxbaumii fruit picture by Yoan MARTIN (cc-by-sa)

Distribution

Carex buxbaumii world distribution map, present in Austria, Bulgaria, Belarus, Canada, Switzerland, Colombia, Czech Republic, Germany, Denmark, Finland, France, Micronesia (Federated States of), Ireland, Iceland, Italy, Japan, Kazakhstan, Malaysia, Nicaragua, Netherlands, Norway, Poland, Korea (Democratic People's Republic of), Romania, Russian Federation, Sweden, Ukraine, United States of America, and Venezuela (Bolivarian Republic of)

Conservation status

Carex buxbaumii threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:30070684-2
WFO ID wfo-0000345198
COL ID R8GK
BDTFX ID 75027
INPN ID 88404
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Carex buxbaumii f. mitis Carex buxbaumii f. oenipontana Carex buxbaumii f. virescens Carex buxbaumii Carex oligandra Carex picea Carex pseudobuxbaumii Carex subulata Carex holmiana Carex buxbaumii f. pedunculata Carex buxbaumii f. buxbaumii Carex buxbaumii f. dilutior Carex polygama Physiglochis buxbaumii Carex buxbaumii subsp. subulata Carex buxbaumii var. anticostensis Carex polygama subsp. subulata Carex buxbaumii var. claviformis Carex buxbaumii var. sibirica Carex polygama var. confusa Carex polygama var. brevisquamosa Carex buxbaumii var. submutica Carex buxbaumii var. subrigida Carex tubulata