Carex lenticularis var. dolia

(M. E. Jones) L. A. Standley

Syst. Bot. Monogr. 7: 62. 1985.

Basionym: Carex goodenovii var. dolia M. E. Jones Bull. Montana State Univ., Biol. Ser. 15: 72. 1910
Synonyms: Carex enanderi Hultén Carex eurystachya F. J. Hermann Carex plectocarpa F. J. Hermann
Treatment appears in FNA Volume 23. Treatment on page 392. Mentioned on page 389, 391.

Culms 3–35 cm. Leaf blades 1.5–2.5 mm wide. Inflorescences: peduncle of proximal spike less than 1 cm; proximal bract red-brown at base, 1–2 mm wide. Spikes: proximal 3–4 spikes pistillate, 0.9–1.5 cm × 2–4 mm; terminal spike gynecandrous. Pistillate scales red-brown or black. Perigynia 5–7-veined on each face, ovoid, 1.8–2.5 × 1.2–1.5 mm; stipe to 0.5 mm; beak red-brown, 0.2 mm.

Phenology: Fruiting Aug–Sep.
Habitat: Gravelly soils on seasonally flooded stream and lakeshores or seeps
Elevation: 1500–3000 m


V23 696-distribution-map.jpg

Alta., B.C., Yukon, Alaska, Mont.


Carex lenticularis var. dolia is an infrequent taxon of high elevations in the northern Rocky Mountains and can be separated from var. lipocarpa by the lax habit, the compact inflorescence, the gynecandrous terminal spike, and the ovoid perigynia. It appears to hybridize with var. lipocarpa in Montana. Carex eleusinoides is similar in inflorescence morphology, but may be distinguished by its red basal sheaths and short, veinless perigynia. The eastern C. rufina is also very similar in inflorescence morphology; it differs in the short, subsessile, ellipsoid perigynia.

Selected References


Lower Taxa

Lisa A. Standley +, Jacques Cayouette +  and Leo Bruederle +
(M. E. Jones) L. A. Standley +
Carex goodenovii var. dolia +
Alta. +, B.C. +, Yukon +, Alaska +  and Mont. +
1500–3000 m +
Gravelly soils on seasonally flooded stream and lakeshores or seeps +
Fruiting Aug–Sep. +
Syst. Bot. Monogr. +
Illustrated +  and Endemic +
Carex enanderi +, Carex eurystachya +  and Carex plectocarpa +
Carex lenticularis var. dolia +
Carex lenticularis +
variety +