Hordeum brachyantherum

Hordeum brachyantherum  Nevski subsp.
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