elephant'sfoot

el·e·phant's foot (ĕlʹə-fənts) n. pl. elephant's foots

1. An African species of yam (Dioscorea elephantipes) having unusual clusters of tubers that grow above the ground.

2. Any of several plants of the genus Elephantopus in the composite family, having small purplish flowers grouped in discoid flower heads.

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