Grazing Oklahoma: Yellow Sweet Clover

(Courtesy of the Noble Research Institute)

By: Josh Gaskamp

Characteristics: Yellow sweet clover is an annual, cool-season forb introduced into the United States from Europe and Asia. Yellow sweet clover can reach to more than six feet in height. It commonly grows along roadsides and areas where the soil has been disturbed. Its leaves alternate on the stem, and like many true clovers (Trifolium spp.), each leaf consists of three leaflets. The leaflets are generally oblanceolate (baseball bat shaped), and the margins of each leaflet are lined with saw tooth-like projections. Clusters of small yellow flowers appear at the tips of the stems from April through July, and seeds appear in pods containing one seed. Yellow sweet clover and its cousin, white sweet clover (Melilotus albus), have a characteristic sweet odor.

Learn more in the July issue of OKFR.