WorldFloraDB - Carex saxatilis

Characteristics

Plants usually loosely cespitose; rhizomes short, congested. Culms trigonous in cross section, 8–90 cm, scabrous distally. Leaves: basal sheaths reddish brown; ligules as wide as to slightly longer than wide; blades mid to dark green, V-shaped, sometimes with revolute margins, 0.9–6.3 mm wide, glabrous. Inflorescences 2.5–14(–20) cm; proximal bract 0.6–16(–29) cm, shorter than or equaling inflorescence; proximal 1–3 spikes pistillate, erect or the proximal often pendent; terminal 1–3 spikes staminate. Pistillate scales ovate, 1.9–4.3(–5) × 0.9–2.1 mm, as long as or shorter than perigynia, margins entire, apex obtuse or acute, awnless. Perigynia ascending, often dark-colored, obscurely few-veined, veins not running to beak, tightly investing achene, elliptic, 2.2–5.5 × 1.1–2.9 mm, apex abruptly contracted; beak 0.2–0.8 mm, bidentulate, teeth straight, to 0.3 mm. Stigmas 2. Achenes yellow, biconvex, smooth. 2n = 78, 80.

More

Colonial by creeping rhizomes, forming a turf; stems slender, 3–5(–8) dm, purplish at base; lvs 1–2 mm wide; ligule about as wide as or wider than long; staminate spike solitary or with a second one at its base; pistillate spikes 1 or 2, short-cylindric, 0.5–2 cm, erect, longer than the peduncle; lowest bract lf-like but not sheathing; pistillate scales brown, the lower cuspidate or shortly acuminate, the upper blunter; perigynia 15–40, ovoid, scarcely inflated, biconvex and ± flattened, 2.5–3.5 mm, nerveless or nearly so except for the marginal ribs, the beak 0.5 mm, emarginate; achene lenticular, obovoid, 2–2.5 mm, the persistent style strongly bent or contorted below; 2n=80. Moist or wet, sandy or gravelly soil; circumboreal, s. to Me., Hudson’s Bay, and the w. cordillera. Our plants are var. miliaris (Michx.) L. H. Bailey, which ranges n. to Lab. (C. miliaris)

Life form

perennial

Growth form

herb

Growth support

free-standing

Foliage retention

deciduous

Sexuality

-

Pollination

-

Spread

-

Mature width (meter)

-

Mature height (meter)

0.35 - 0.6

Root system

fibrous-root rhizome

Rooting depth (meter)

0.3

Root diameter (meter)

-

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

c3

Environment

Light
Soil humidity
Soil texture	-
Soil acidity
Soil nutriment
Hardiness (USDA)

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

Distribution

Conservation status

Identifiers

LSID	urn:lsid:ipni.org:names:302087-1
WFO ID	wfo-0000350993
COL ID	RBPQ
BDTFX ID	14344
INPN ID	88850
Wikipedia (EN)	Link
Wikipedia (FR)	Link

Synonyms

Carex ambusta Carex procerula Carex saxatilis Carex incerta Carex jungenda Carex pulla Vignea pulla Vignea saxatilis Carex miliaris f. major Carex pulla f. debilis Carex ensifolia Carex fusca Carex ochroleuca Carex vesicaria f. laxa Carex physocarpa Carex compacta Carex miliaris var. major Carex pulla var. laxa Carex pulla var. vesicarioides Carex saxatilis subsp. laxa Carex saxatilis var. major Carex saxatilis var. rhomalea Carex vesicaria var. distenta Carex vesicaria var. jejuna Carex vesicaria var. physocarpa Carex vesicaria subsp. pulla Carex vesicaria subsp. saxatilis Carex saxatilis var. glomerata Carex saxatilis var. laxa Carex vesicaria var. laurentiana Carex saxatilis var. saxatilis Carex saxatilis subsp. saxatilis

WorldFloraDB 2024

Carex saxatilis L.

Russet sedge (en), Carex saxatile (fr), Laîche toujours verte (fr)

Species

Angiosperms > Poales > Cyperaceae > Carex