Difference between revisions of "Carex michauxiana"

Boeckeler

Linnaea 41: 336. 1877.

Common names: Carex de Michaux
IllustratedEndemic
Basionym: Carex rostrata Michaux Fl. Bor.-Amer. 2: 173. 1803,
Treatment appears in FNA Volume 23. Treatment on page 515. Mentioned on page 516.
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|genus=Carex
 
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|section=Carex sect. Rostrales
 
|section=Carex sect. Rostrales

Latest revision as of 20:44, 5 November 2020

Culms obtusely trigonous in cross section, 15–70 cm, smooth. Leaves: ligules 1.2–3 mm, wider than long; blades yellowish green, M-shaped to flat, widest leaves 1.6–3.5(–4.2) mm wide, smooth abaxially, minutely papillose adaxially, especially distally. Inflorescences 1.8–18 cm; bract sheaths with apex concave; proximal (1–)2–3(–4) spikes pistillate, distal spikes erect, aggregated or the proximal sometimes remote, ovoid. Pistillate scales narrowly ovate, mostly 1/3–2/3 length of perigynia, apex acute. Anthers 1.1–2.7 mm. Perigynia spreading or the proximal somewhat reflexed, yellowish green, 20–26-veined, essentially uninflated, lanceolate, 8.7–12.1 × 1.3–2.1 mm, 4–7 times as long as wide, apex tapered, bidentulate; beak absent. Achenes 2.2–3 × 1.2–1.7 mm.


Phenology: Fruiting late spring–summer.
Habitat: Bogs, fens, lakeshores, stream banks, open seeps, in sandy or peaty, often acidic soils
Elevation: 0–1000 m

Distribution

V23 962-distribution-map.jpg

St. Pierre and Miquelon, Man., N.B., Nfld. and Labr., N.S., Ont., Que., Sask., Maine, Md., Mass., Mich., Minn., N.H., N.Y., Vt., Wis.

Discussion

Carex michauxiana is closely related to the east Asian C. dolichocarpa C. A. Meyer ex V. I. Kreczetowicz.

Selected References

None.

Lower Taxa

None.
... more about "Carex michauxiana"
A. A. Reznicek +
Boeckeler +
Carex rostrata +
Carex de Michaux +
St. Pierre and Miquelon +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, Que. +, Sask. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, N.H. +, N.Y. +, Vt. +  and Wis. +
0–1000 m +
Bogs, fens, lakeshores, stream banks, open seeps, in sandy or peaty, often acidic soils +
Fruiting late spring–summer. +
Illustrated +  and Endemic +
Carex sect. Folliculatae +
Carex michauxiana +
Carex sect. Rostrales +
species +