Bromus madritensis L.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1

United States

Rounded National Status Rank: NNA - Not Applicable

Rounded Global Status Rank: GNR - Not Yet Ranked

More info for the terms: shrub, shrubs

Red brome is common in open canopies of Arizona chaparral subjected to heavy grazing [18].
Betancout [13] attributes red brome expansion in the Upper
Sonoran Desert of central and southern Arizona to climate change. Since 1976, increased winter precipitation has promoted the
spread of red brome.
In relatively dry areas of the Southwest, red brome may displace native species during wetter years [4,14,44].
Relatively drier winters and wetter summers may slow the red brome invasion [13].

The smut Ustilago bullata is common on red brome in Nevada. Infected plants produce
fewer viable seeds than uninfected plants [44].

In California chaparral, fall germination of foxtail chess gives the grass a competitive
advantage over shrub seedlings, which usually germinate in spring [15].
Foxtail chess competes with California sagebrush (Artemisia californica)
seedlings during their 1st growing season. Planting shrubs that are 1 or more
years old increases their competitive ability against red brome [31]. Bartolome and others [8] found mulch 
provided no significant (p > 0.05) benefit to standing crops foxtail
chess in
areas of California receiving less than 9.8 inches (250 mm) annual precipitation.

Foxtail chess is an annual weed in California cereal crops [28].