Bromus arenarius is a species of bromus known by the common name Australian brome.
It is native to much of Australia, and it is known in New Zealand and parts of North America as an introduced species. It is an annual grass growing up to 60 centimeters tall. Its narrow leaves are coated in soft hairs. The inflorescence is a wide array of nodding, flat spikelets, each on an individual stalk that may be curved or wavy.
Description
Bromus arenarius grows culms tall, with slightly hairy nodes and internodes only becoming hairless towards their centers. Its leaf sheaths are slightly hairy, and its
are hairless. Its leaf blades are long, and can be either hairless or slightly hairy. Its
inflorescence is an open, pyramidal
panicle with spreading, wavy branches. Its
are solitary, and fertile spikelets have pedicels. Each spikelet has five to fourteen
. The
are shorter than the spikelets, with both upper and lower glumes
lanceolate and covered with fine hairs.
Distribution and habitat
Bromus arenarius is native to southern Australia, though it is introduced to the southern United States, northern Mexico, and northern New Zealand, where it grows in
temperate climates.
It prefers to grow in dry, sandy slopes and fields.
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