Carex mackenziei V.I.Krecz.

Mackenzie's sedge (en)

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Plants loosely cespitose; rhizomes short; stolons present, often long. Culms sometimes curved, slender, 10–40 cm. Leaves: sheaths gray-brown to pale brown abaxially, inner band thin, hyaline, often red tinged, summit prolonged, concave; ligules as long as wide; blades yellowish green to pale gray-green, flat, 5–20 cm × 1–3 mm, subequal or shorter than culms, soft. Inflorescences 1.5–5 cm × 7–12 mm; proximal bracts scalelike, sometimes bristlelike, shorter than spikes. Spikes 3–6, gynecandrous, proximal spikes separate, usually 1–1.5 cm apart, distal approximate, individually distinct, containing 5–15(–20) perigynia, oblong, 5–15 × 4–6 mm; terminal spike conspicuously staminate at base, long-clavate, 10–20 mm. Pistillate scales pale red-brown with lighter center and narrow hyaline margins, ovate, ± equaling, concealing perigynia, apex obtuse. Perigynia appressed-ascending, gray-green, often reddish dotted, often pale brown in age, finely several-veined, oblong-elliptic, 2.5–3.3 × 1.5–2 mm, widest near middle, coriaceous; beak entire or with few marginal teeth. Achenes pale brown to gray-brown, oblong, 1.75–2 × 1.25–1.5 mm, dull. 2n = 64.
More
Tufted on short rhizomes; stems very slender, 2–4 dm, surpassing the lvs; main lvs 1–2 mm wide; spikes 2–4, closely approximate in an ovoid or oblong head 1–2 cm, the lateral pistillate, the terminal with slender staminate base; scales ovate, slightly shorter than the perigynia, brown with narrow hyaline margins; perigynia obovate-fusiform, multinerved, 1.5–3 mm, less than 2.6 times as long as wide, the beak a fifth as long as the body; achene lenticular; 2n=66. Salt-marshes; interruptedly circumboreal, s. to N.B. and Que. Our plants represent the irregularly distributed var. amphigena Fernald. (C. marina, misapplied)
Tufted on short rhizomes; stems very slender, 2–4 dm, surpassing the lvs; main lvs 1–2 mm wide; spikes 2–4, closely approximate in an ovoid or oblong head 1–2 cm, the lateral pistillate, the terminal with slender staminate base; scales ovate, slightly shorter than the perigynia, brown with narrow hyaline margins; perigynia obovate-fusiform, multinerved, 1.5–3 mm, less than 2.6 times as long as wide, the beak a fifth as long as the body; achene lenticular; 2n=66. Salt-marshes; interruptedly circumboreal, s. to N.B. and Que. Our plants represent the irregularly distributed var. amphigena Fernald. (C. marina, misapplied)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
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Mature height (meter) 0.1 - 0.4
Root system fibrous-root rhizome
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JanFebMar
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OctNovDec
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Photosynthetic pathway c3

Environment

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Hardiness (USDA) 4-9

Usage

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Cultivation

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Distribution

Carex mackenziei world distribution map, present in Canada, Finland, Iceland, Japan, Norway, Korea (Democratic People's Republic of), Sweden, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:300802-1
WFO ID wfo-0000348568
COL ID 69B9S
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex mackenziei Carex norvegica Carex norvegica var. isostachya