BROMUS

BROMUS, BROOM-GRASS, in botany: A genus of the digynia order, belonging to the triandria class of plants; ranking, in the natural method, under the 4th order, Gramina. The calyx is bivalved, having a partial spike, oblong and round, opposite grains, with an awn below the point of each outer valve. There are 24 species, eight of which are natives of Britain, viz. the feculinus or field broom-grass; the arvenis, or common broom-grass; the ciliatus, or wall broom-grass; the sterilis, or barren broom-grass; the giganteus, or tall broom-grass; the ramosus, or wood broom-grass; and the pinnatus, or spiked broom-grass.