University of Missouri Extension

IPM1007, Revised November 2009

Practical Weed Science for the Field Scout: Corn and Soybean

Oatgrass, bulbous (Arrhenatherum elatius var. bulbosum)

Perennial grass

Bulbous oatgrass
Bulbous oatgrass

A perennial, clump-forming grass that goes dormant during the summer and carries out its life cycle during the winter months. Leaves are rolled in the bud, without auricles, and have a membranous ligule approximately 1/2 to 1 mm long. Leaf blades are about 10 mm wide and may reach 12 inches in length. Leaf blades may be sparsely hairy above or without hairs, but lower surfaces are usually completely hairless. Plants have a fibrous root system and bulbous fragments (called corms). These bulbs allow for the vegetative reproduction and spread of this species. The seedhead is a narrow, shiny, erect or nodding green or purplish panicle.

Bulbous oatgrass Bulbous oatgrass
 

 

Wild thing

IPM1007 Practical Weed Science for the Field Scout: Corn and Soybean | University of Missouri Extension

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