Carex lenticularis var. lipocarpa

(Holm) L. A. Standley

Syst. Bot. Monogr. 7: 67. 1985.

Basionym: Carex vulgaris var. lipocarpa T. Holm Amer. J. Sci. 167: 308. 1904
Synonyms: Carex hindsii var. brevigluma Kükenthal Carex kelloggii W. Boott Carex lenticularis var. paullifructus Kükenthal
Treatment appears in FNA Volume 23. Treatment on page 393. Mentioned on page 389, 391, 392.

Culms 15–90 cm. Leaf blades 2–4 mm wide. Inflorescences: peduncle of proximal spike 1 cm or longer; proximal bract red-brown at base, 1.5–3 mm wide. Spikes: proximal 3–7 spikes pistillate, 1.5–2.5 cm × 2.5–4 mm; terminal spike staminate. Pistillate scales red-brown or black. Perigynia 5–7-veined on each face, ovoid or ellipsoid, 2–3.5 × 1–1.8 mm; stipe 0.2–0.5 mm; beak red-brown, 0.1–0.5 mm. 2n = 92.

Phenology: Fruiting Aug.
Habitat: Lakeshores, wet meadows
Elevation: 0–3000 m


V23 699-distribution-map.jpg

Alta., B.C., Alaska, Ariz., Calif., Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.


Carex lenticularis var. lipocarpa is the most abundant member of the species in western North America. It is distinguished from the other western taxa by the green, short-stipitate, ellipsoid perigynia and the elongate inflorescence; it is distinguished from the eastern var. lenticularis by the black scales and the red-brown beak orifice.

Despite the morphologic similarity of Carex lenticularis var. lenticularis and C. lenticularis var. lipocarpa and the apparent intergradation where the two ranges come into contact, there appears to have been some divergence in chromosome numbers.

Selected References


Lower Taxa

Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
(Holm) L. A. Standley +
Carex vulgaris var. lipocarpa +
Alta. +, B.C. +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Mont. +, Oreg. +, Utah +, Wash. +  and Wyo. +
0–3000 m +
Lakeshores, wet meadows +
Fruiting Aug. +
Syst. Bot. Monogr. +
Illustrated +  and Endemic +
Carex hindsii var. brevigluma +, Carex kelloggii +  and Carex lenticularis var. paullifructus +
Carex lenticularis var. lipocarpa +
Carex lenticularis +
variety +