Carex sartwellii

Dewey

Amer. J. Sci. Arts 43: 90. 1842.

Common names: Carex de Sartwell
IllustratedEndemic
Treatment appears in FNA Volume 23. Treatment on page 302. Mentioned on page 303.

Culms trigonous, scabrous-angled distally, (30–)40–120 cm; vegetative culms somewhat taller. Leaves: basal sheaths brown; sheaths glabrous, inner band green, veined, apex hyaline, prolonged 1–4.5 mm; ligules 2.2–8 mm; blades 2.5–4.6 mm wide. Inflorescences nearly cylindric, except near apex, 2.5–7(–9) cm; spikes ascending, ovate, 3.2–11 × 1.1–7 mm, basal spikes slightly more prominent than middle spikes. Pistillate scales pale brown to straw colored at maturity, hyaline margins, ovate, apex acute to acuminate, glabrous. Staminate scales pale brown to straw colored, narrowly ovate, apex acute, glabrous. Perigynia (2.5–)2.8–4.1(–4.6) × 1.3–2 mm; beak 0.4–1(–1.2) mm. Achenes brown.


Phenology: Fruiting Jun–Jul.
Habitat: Fens, wet prairies, sedge meadows, marshes, wet, open thickets, open swamps, stream, pond, and lakeshores, ditches, often in shallow water
Elevation: 0–2100 m

Distribution

V23 525-distribution-map.jpg

Alta., B.C., Man., N.W.T., Ont., Que., Sask., Colo., Idaho, Ill., Ind., Iowa, Mich., Minn., Mo., Mont., Nebr., N.Y., N.Dak., Ohio, Pa., S.Dak., Wis., Wyo.

Discussion

Carex sartwellii is an important wetland species in portions of the Midwest and West, but becomes increasingly uncommon and local eastward. It forms large, loose clones, but can be easily overlooked because flowering and fruiting are sometimes uncommon. Once seen, the tall, tristichous vegetative culms scattered along the rhizome are distinctive.

Selected References

None.

Lower Taxa

None.
... more about "Carex sartwellii"
A. A. Reznicek +  and Paul M. Catling +
Holarrhenae +
Carex de Sartwell +
Alta. +, B.C. +, Man. +, N.W.T. +, Ont. +, Que. +, Sask. +, Colo. +, Idaho +, Ill. +, Ind. +, Iowa +, Mich. +, Minn. +, Mo. +, Mont. +, Nebr. +, N.Y. +, N.Dak. +, Ohio +, Pa. +, S.Dak. +, Wis. +  and Wyo. +
0–2100 m +
Fens, wet prairies, sedge meadows, marshes, wet, open thickets, open swamps, stream, pond, and lakeshores, ditches, often in shallow water +
Fruiting Jun–Jul. +
Amer. J. Sci. Arts +
Illustrated +  and Endemic +
Carex sect. Distichae +
Carex sartwellii +
Carex sect. Holarrhenae +
species +