any of a large genus (Cleome) of mostly tropical plants of the caper family, with white, pink, yellow, green, or purple flowers having stalked petals and long stamens; spider flower
See cleome in American Heritage Dictionary 4
(klē-ōˈmē)
noun
Any of various often strong-smelling plants of the genus Cleome, native chiefly to warm regions and including several ornamentals. Also called spider flower.