September 16, 2015
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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