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Hordeum brachyantherum
Nevski
subsp. brachyantherum
Meadow barley
 Family:
Poaceae
Habit:
Tufted perennial 2 to 7 dm. tall, mostly glabrous.
Distribution:
Meadows, pastures, stream banks in California to Rocky
Mountains, Mexico to Alaska. The ssp. californicum is
found from
California to
Oregon.
Seed unit:
3 joined spiklets.
Seed: Central spikelet glumes 7 to 19 mm. long, flat at base and
straight with age, lateral spikelet glumes 6.5 to 19 mm long,
narrower, straight or spreading with age.
Embryo:
Basal-lateral embryo area of seed caryopsis.
 Purity
instructions:
Pure seed definition:
AOSA:
PSU#14 - Multiple floret spikelet, multiple floret or floret
with or without awn(s), provided a caryopsis with some degree of
endosperm development can be detected. Caryopsis or piece of
broken caryopsis larger than one half of the original size.
Lab notes:
Often samples have multiple floret spikelets or spikelets that
are empty with undeveloped caryopses.
Average pure
seed units per gram:
239 seeds per gram (based on AOSA pure seed units only from 101
samples received for testing from 1994 to 2003).
Range of
percent pure seed:
84% to 99%
Range of
percent inert:
.01 to 7%
Description
of inert:
Plant material, chaff.
Planting
instructions:
400 seeds, TB, 14 days at 20°C; for fresh and dormant seed,
prechill and GA3 recommended.
References:
(link
to main reference page)
Hickman, J.C., Ed. 1993. p. 1266
Munz, P.A. and D.D. Keck. 1968. p. 1508
Ransom Seed Laboratory |
