I want more information about Brome Grass. Is it highly invasive?

Question

I want more information about Brome Grass. Is it highly invasive?

Answer 1

it crowds out native grasses and creates wildfire hazards

Downy brome has developed into a severe weed in several agricultural systems throughout North America, particularly pastureland, western rangeland, and winter wheat fields.  It is now estimated to infest over 41 million hectares (101 million acres) in the western states (Mack 1981).

Moreover, in drought situations the presence of Bromus tectorum causes rapid depletion of soil moisture, thus serving to r****d or prevent the establishment of perennial grasses (Welsh 1981).

Answer 2

One source says there are about 160 species with between 100 and 400 species in the literature over many decades, varying over the years. But looking all over the Internet proved hard to find generic information on the genus. The hits were all of specific species, except this one. It is brief and to the point and I would like to quote it:

any of a large genus (Bromus) of grasses of the temperate zone, having closed sheaths and spikelets with awns: a few are crop plants but many are weeds