Bulbous bluegrass (Poa bulbosa L.)

Introduced from Europe, bulbous bluegrass is now weedy in pastures, grain fields and roadsides in scattered areas of most states in the West.

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A perennial that grows from basal bulbs, the culms closely clustered, 1/2 to 2 feet tall. Leaf lades are narrow, flat or loosely rolled; with membranous ligules about 1/8 inch long. Flowers are modified to bulblets with a dark purple base.