Carex echinata Murray
  • Prod. Stirp. Gott.


Cite taxon page as 'WFO (2020): Carex echinata Murray. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000346291. Accessed on: 01 Jun 2020'

General Information

Culms 10–90(–135) cm. Leaves 3–6 per culm; sheaths tight, inner band hyaline, 1.8–2.5 cm, apex concave, glabrous; ligules 0.6–2.5(–4.5) mm, rounded to ± acute; blades plicate, 5–40 cm × 0.7–3.3(–3.8) mm, widest leaf 1–3.3(–3.8) mm wide. Inflorescences 0.7–7.8 cm; spikes (2–)3–8; lateral spikes pistillate often with few staminate flowers proximally, 3–15.5 mm, sessile, staminate portion 7-flowered, to 8.2 mm, pistillate portion 3–32-flowered, 2.5–11 mm; basal 2 spikes 1.7–42 mm apart; terminal spike gynecandrous, 5–24 mm, staminate portion 2–17-flowered, 2–16.5 × 0.9–2 mm, pistillate portion 4–26-flowered, 2.6–9 × 4.9–9.1 mm. Pistillate scales ovate, (1.4–)2.1–3.1 × 0.7–2.3 mm, apex acute to sometimes obtuse. Staminate scales ovate-lanceolate to ovate, 1.3–3.8 × 0.8–1.7 mm, base clavate, apex acute. Anthers 0.8–1.6(–2) mm. Perigynia spreading to reflexed, castaneous to dark brown, 2–14-veined abaxially, 0–12-veined adaxially over achene, lanceolate to ovate, (2.65–)2.9–4.75 × 0.8–2.1 mm, (1.7–)1.8–3.2(–3.6) times as long as wide; beak (0.85–)0.95–2 mm, (0.4–)0.45–0.86 length of body, serrulate, teeth (0–)0.15–0.5 mm. Achenes ovate-lanceolate to rhombic-ovate, 1.3–2.1 × 0.8–1.55 mm. 2n = 58.

  • Provided by: [C].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    "Stems densely tufted, aphyllopodic, 1–6 dm, scabrous on the angles above; lvs 3–6 per stem, all in the basal third, to about as long as the stems, plicate, mostly 1–2.5 mm wide; spikes 3–7, sessile, small and few-fld, the terminal one with a conspicuous, slender, staminate base, some of the lateral ones often wholly pistillate; bracts small and inconspicuous; anthers 0.8–1.6 mm; perigynia 5–15, crowded, widely spreading or the lower reflexed, green or tan, planoconvex, spongy-thickened at base, lightly several- to many-nerved dorsally, few- to several-nerved or virtually nerveless ventrally, narrowly lance-triangular to move commonly lance-ovate or even ovate, 2.8–3.5(–4) mm, 1.8–3.2 times as long as wide, often serrulate-margined distally, with a prominent, slender, serrulate-margined, sharply bidentate beak 1–1.6 mm, half as long to almost as long as the body; achene lenticular; 2n=50–58. Swamps, bogs, and other wet places; circumboreal, s. to Va. (and in the mts. to N.C.), Ind., Io., Utah, and Calif. Ours is the widespread var. echinata. (C. angustior; C. cephalantha; C. josselynii; C. laricina; C. muricata, misapplied; C. stellulata)"

  • Provided by: [B].New York Botanical Garden
    • Source: [
    • 2
    • ]. 

    Synonyms

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    Cyperaceae
    • A CC0 1.0 Universal (CC0 1.0).
    New York Botanical Garden
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    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).