Carex praeceptorum


in N. L. Britton et al., N. Amer. Fl. 18: 95. 1931.

Synonyms: Carex canescens var. dubia L. H. Bailey Carex heleonastes var. dubia (L. H. Bailey) B. Boivin
Treatment appears in FNA Volume 23. Mentioned on page 313, 317.

Plants loosely or densely cespitose, in small clumps; rhizomes short. Culms usually erect, slender, 10–20(–30) cm. Leaves: sheaths pale brown abaxially, inner band thin, hyaline, sometimes red tinged, concave at summit; ligules as long as wide; blades pale to gray-green, flat, 5–15 cm × 1.5–2.5 mm, shorter than culms, thin. Inflorescences 1–1.5(–2) cm × 5–10 mm; proximal bracts bristlelike, prolonged, distal bracts scalelike. Spikes 3–5, gynecandrous, approximate, sessile, containing 8–15(–20) perigynia; terminal spike staminate for less than 1/2 of length, shortly clavate, oblong-ovoid, 4–7 × 3–5 mm. Pistillate scales light chestnut-brown with lighter center and hyaline margins, ovate, subequal to perigynia, apex obtuse. Perigynia appressed-ascending, pale brown, often darker brown in age, finely several-veined, elliptic-ovate, 1.5–2 × 1 mm, widest near middle, membranous; beak short, entire or slightly serrulate. Achenes pale brown, broadly obovate, 1.25 × 0.8–1 mm, dull to slightly glossy.

Phenology: Fruiting Jul–Sep.
Habitat: Boggy places, wet soil around montane ponds and lakes
Elevation: 2300–3500 m


V23 563-distribution-map.jpg

B.C., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.


Selected References


Lower Taxa

... more about "Carex praeceptorum"
Heikki Toivonen +
Mackenzie +
B.C. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
2300–3500 m +
Boggy places, wet soil around montane ponds and lakes +
Fruiting Jul–Sep. +
in N. L. Britton et al., N. Amer. Fl. +
Illustrated +  and Endemic +
Carex canescens var. dubia +  and Carex heleonastes var. dubia +
Carex praeceptorum +
Carex sect. Glareosae +
species +