UW Burke Herbarium species comparison

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Bromus tectorum

Bromus rubens

cheat grass

fox-tail brome
Habit Annual, the culms 1.5-4.5 dm. tall, finely pubescent just below the panicle.
Leaves

Sheaths closed;

ligules 1.5-3 mm. long, lacerate;

blades flat, 1.5-3 mm. broad, finely pubescent.
Flowers

Inflorescence a dense, ovoid, purplish panicle 3-8 cm. long, the lower branches strongly ascending, much shorter than the glumes;

spikelets subsessile, stiffly erect, 5- to 9-flowered, 17-22 mm. long including the awns;

glumes narrowly lanceolate, the first 8 mm. long, 1-nerved, the second 3-nerved, 2-3 mm. longer;

lemmas 13-15 mm. long, the two teeth 4-5 mm. long, the awn attached between the teeth 2 cm. long, curved;

stamens 2, included.

Bromus tectorum

Bromus rubens
Flowering time March-June May-June
Habitat Sagebrush desert, grasslands, prairies, meadows, balds, roadsides, wastelots, and other distrubed open areas from low to middle elevations. Fields, roadsides, wastelots, and other disturbed areas including overgrazed lands.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska to Baja California, Mexico, east across North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Occurring east of the Cascades crest in south-central Washington; south-central Washington to California, east to Idaho, Utah and Arizona.
Origin Introduced from Europe Introduced from Europe
Conservation status Not of concern Not of concern
Sibling taxa
B. arenarius, B. briziformis, B. ciliatus, B. commutatus, B. diandrus, B. erectus, B. hordeaceus, B. inermis, B. japonicus, B. madritensis, B. orcuttianus, B. pacificus, B. pumpellianus, B. racemosus, B. rubens, B. secalinus, B. sitchensis, B. squarrosus, B. sterilis, B. suksdorfii, B. vulgaris
B. arenarius, B. briziformis, B. ciliatus, B. commutatus, B. diandrus, B. erectus, B. hordeaceus, B. inermis, B. japonicus, B. madritensis, B. orcuttianus, B. pacificus, B. pumpellianus, B. racemosus, B. secalinus, B. sitchensis, B. squarrosus, B. sterilis, B. suksdorfii, B. tectorum, B. vulgaris
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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