Any of several leguminous trees of the genus Erythrina (subfamily Faboideae), which have bright red seeds, especially the West Indian E. velutina; also called coral tree.
Origin
Mid 18th century; earliest use found in Patrick Browne (c1720–1790), physician and botanist.
Definition of red bean tree in US English:
red bean tree
noun
Any of several leguminous trees of the genus Erythrina (subfamily Faboideae), which have bright red seeds, especially the West Indian E. velutina; also called coral tree.
Origin
Mid 18th century; earliest use found in Patrick Browne (c1720–1790), physician and botanist.