Carex obnupta L. Bailey
Slough sedge
Family: Cyperaceae
Habit: Forming beds and dense raised clumps from rhizomes, 3 to 15 dm. long.
Distribution: Central western California and San Francisco Bay area, north to British Columbia in marshes and wet meadows.
Seed unit: Achene, purplish-black with lighter center and narrow hyaline margins.
Seed: Achene hard, lenticular, ovoid, completely surrounded by smooth or toothed perigynium.
Embryo: Embryo is basal extending less than half the length of the seed in starchy endosperm.
Purity instructions: Pure seed definition:
AOSA: PSU#27 - Intact achene whether or not a seed is present. Piece of broken achene larger than one-half of the original size, unless no seed is present.
Average pure seed units per gram: 1,203 seeds per gram (based on AOSA pure seed units only from 2 samples received for testing from 2001 to 2002).
Range of percent pure seed: 99%
Range of percent inert: 1%
Description of inert: Plant material.
Planting instructions: 400 seeds, TB, 21 days @ 20-35°C; prechill not recommended.
References: (link to main reference page)
Hickman, J.C., Ed. 1993. p. 1131.
Munz, P.A. and D.D. Keck. 1968. p. 1461.
Ransom Seed Laboratory
