Definitions

1. adjective

Having two kinds of fruit, one borne above and the other below the point of attachment of the flower stalk, as in the buckwheat plant.

“The unique property of the buckwheat plant makes it amphicarpous, producing both aerial and subterranean seeds.”

2. noun

A plant having two kinds of fruit.

“The botanist studied various types of amphicarpous plants in the greenhouse.”