Soft Brome

Bromus hordeaceus

''Bromus hordeaceus'', soft brome, is an annual or biennial species of grass in the true grass family . It is also known in North America as bull grass, soft cheat, and soft chess.

It is the most common species of ''Bromus'' in Britain, where it can be found on roadsides, waste ground, meadows, and cultivated land. It is found throughout Europe and western Asia, and was introduced into North and South America and Australia.

Previously known as ''B. mollis'', his species belongs to a group of closely related species, including some hybrids, which are difficult to tell apart. Some of the other species in this group include: ''B. thominii, B. lepidus, B. ferronii,'' and ''B. molliformis''.
soft brome introduced - a relative of this one is a serious invasive... I'm not sure if this one is as bad though.  Bromus hordeaceus,Geotagged,Spring,United States

Appearance

The plant is hairy all over. It can grow between 10 and 100 cm high, sometimes in tufts, sometimes singly. The culms have between 2 and 5 nodes. The leaves are grey-green. The ligules are 2.5 mm high and flat but toothed. The panicles are up to 16 cm long and grey-green to purple. The spikelets have awns. It flowers from May until July.

Naming

*''Bromus hordeaceus'' ssp. ''ferronii'' – least soft brome
⤷ ''Bromus hordeaceus'' ssp. ''hordeaceus''
⤷ ''Bromus hordeaceus'' ssp. ''molliformis''
⤷ ''Bromus hordeaceus'' ssp. ''pseudothominii''
⤷ ''Bromus hordeaceus'' ssp. ''thominei'' – lesser soft brome

References:

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassMonocots
OrderPoales
FamilyPoaceae
GenusBromus
SpeciesB. hordeaceus