Allenrolfea occidentalis (Wats.) Kuntze
Habit: Shrub 50 to 200 cm. high, woody with jointed stems.
Distribution: Found in moist alkaline places; in deserts, valleys and low mountain ranges throughout California and from Oregon and Idaho to Texas and northern Mexico.
Seed unit: Utricle.
Seed: 0.6 mm. in diameter, ovoid and red-brown.
Embryo: Arched and partly enclosing the copious, starchy endosperm.
Purity instructions: Pure seed definition:
AOSA: PSU #38 - Intact utricle with or without perianth. Piece of broken utricle larger than one-half the original size, unless no seed is present. Seed with or without seed coat. Piece of broken seed, with or without seed coat, larger than one-half the original size.
Average pure seed units per gram: 8,959 seeds per gram (based on AOSA pure seed units only from 7 samples received for testing from1999 to 2003).
Range of percent pure seed: 8% to 40%
Range of percent inert: 59% to 91%
Description of inert: Plant material.
Planting instructions: 400 seeds, TB, 21 days @ 20°C; for fresh and dormant seed, prechill recommended.
References: (link to main reference page)
Hickman, J.C., Ed. 1993. p. 501.
Munz, P.A. and D.D. Keck. 1968. p. 382.
Ransom Seed Laboratory