Climbing or trailing annual, biennial or perennial vines.
Alternate, pinnately compound with several pairs of opposite, narrowly oblong leaflets. The terminal leaflet is modified into a branched, twining tendril used to climb.
Ascending, climbing or trailing stems are herbaceous but may become woody with age.
Flowers and fruit
Blue, purple or reddish pea-like flowers are borne on short stalks in the upper leaf axils or found crowded along one side of long, bare stalks. Fruit are variously sized pea-like pods.
Seeds or rhizomes.
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The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.