Scientific NameBromus hordeaceus
Other Common Names:
Soft brome is a winter annual that reaches up to 1.5 feet tall. This grass is not always erect, it can sometimes have a prostrate growth habit.
Leaves of this grass are between 2-6mm wide and can vary between glabrous or sparsely hairy. However, the leaf sheaths, particularly on the lower part of the plant, will be densely hairy.
Soft brome is recognizable by its growth habit, hairy leaf sheaths, and hairs on the seed covering.
Flower Seed Head
The seed head of this grass is a dense panicle that is 1-4 inches long. The branches of the seeded are shorter than the spikelets.
The seeds of soft brome are singular dry grain, that is 1/4in wide and has a tuft of hair at the tip of the seed.
Soft brome can be a weed in fields or other cultivated areas but prefers undisturbed sites.
Leaf Hair on Upper Surface
hairs on basal half only
rolled in bud
Mature Leaf Width
less than 5 mm,
6 to 15 mm
flat or oval
less than 1 mm,