Biennial, or annual bunch-forming seed grass. Prefers nitrogenous, loose to loamy soils. Germinates in the fall. Minimum soil tillage promotes spread of this grass.
Rye brome [Bromus secalinus]
The youngest leaf is rolled up (Picture 1). Leaves yellow-green with scattered hair on top surface (Picture 2). Leaf sheaths generally hairless and closed. Ligules are short, serrated and yellow to medium-brown. Auricles absent. The inflorescences are erect, loosely arranged panicles (Picture 3). The glume is 5-10 mm in size, hairy to non-hairy with a terminal awn or no awn (Picture 4). Each plant produces approx. 1,000 seeds that remain viable for only approx. 1 year in the soil.