Any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Amorpha \A*mor"pha\, n.; pl. Amorphas . [Gr. ? shapeless.] (Bot.) A genus of leguminous shrubs, having long clusters of purple flowers; false or bastard indigo. --Longfellow.

WordNet Word definitions in WordNet
n. any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers

Wikipedia Word definitions in Wikipedia
Amorpha is a genus of plants in the pea family, Fabaceae . All the species are native to North America , from southern Canada , most of the United States , and northern Mexico . They are commonly known as false indigo . The name Amorpha means "deformed" ...

Wiktionary Word definitions in Wiktionary
n. Any species of the genus ''Amorpha'' of leguminous shrubs.