Shrub, 8 to 30 dm., generally wider than tall, gray-scurfy when
Found in alkaline or saline washes, dry lakes, shrubland,
San Joaquin Valley, Mojave and Colorado Deserts, to Utah and
Utricle or free seed.
Seed enclosed in a pair of appressed bracts. Seeds are circular
to oblong, brown, approximately 1.5 mm. The outline of the
ringlike embryo is evident on the exterior, along the margin,
its radicle tip protruding.
Pure seed definition:
PSU #38 – Intact utricle with or without perianth, whether or
not a seed is present. 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.
A diaphanoscope may be helpful in conducting the purity on this
seed units per gram:
1,043 seeds per gram (based on AOSA pure seed units only from
62 samples received for testing from 1992 to 2004).
percent pure seed:
63 to 97%
3 to 36%
Broken seed, dead insects, plant material.
400 seeds, TB, 21 days @ 20°C; for fresh and dormant seed,
to main reference page)
J.C., Ed. 1993. p. 504.
Martin, A.C. and W.D. Barkley. 1961. p. 152.
Munz, P.A. and D.D. Keck. 1968. p. 379.|
Ransom Seed Laboratory