Carex stylosa

C. A. Meyer

Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 1: 222, plate 12. 1831.

Common names: Carex à long style
Synonyms: Carex beringiana Chamisso ex Steudel Carex nigritella Drejer Carex stylosa var. nigritella (Drejer) Fernald
Treatment appears in FNA Volume 23. Treatment on page 408. Mentioned on page 402, 407.

Plants cespitose. Culms 15–50 cm, distally slightly scabrous. Leaves 2–4 mm wide. Inflorescences: proximal bracts shorter than or exceeding inflorescences; spikes separate, short-oblong or elongate, 7–20 × 4.5–8 mm; proximal spikes often distant, spreading or pendent, very long-pendunculate; distal spikes erect, pedunculate; lateral (1–)2–3(–4) spikes pistillate, of similar length; terminal spike staminate or with perigynia, neither wholly gynecandrous or androgynous. Pistillate scales brown with hyaline margins, lanceolate, shorter and narrower than perigynia, midvein lighter colored than body, often raised, prominent. Perigynia spreading, green or golden, becoming brown, veinless, elliptic, 2.5–3.5 × 1.5–1.75 mm, apex beakless or abruptly beaked, papillose; beak to 0.2–0.3 mm, truncate, smooth. Achenes nearly filling body of perigynia. 2n = 52.

Phenology: Fruiting Jun–Sep.
Habitat: Meadows, heaths, bogs, lakeshores
Elevation: 0–1300 m


V23 733-distribution-map.jpg

Greenland, B.C., Nfld. and Labr., Que., Yukon, Alaska, Wash., Asia (Russian Far East).


Selected References


Lower Taxa

... more about "Carex stylosa"
David F. Murray +
C. A. Meyer +
Carex à long style +
Greenland +, B.C. +, Nfld. and Labr. +, Que. +, Yukon +, Alaska +, Wash. +  and Asia (Russian Far East). +
0–1300 m +
Meadows, heaths, bogs, lakeshores +
Fruiting Jun–Sep. +
Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans +
Illustrated +
Carex beringiana +, Carex nigritella +  and Carex stylosa var. nigritella +
Carex stylosa +
Carex sect. Racemosae +
species +