Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
Native of tropical America, becoming weedy northward in fencerows and fields. First collected in 1936 in Kalamazoo Co.
An annual twining vine with blue (to purple) flowers less than 5 cm long and leaves usually deeply 3-lobed. Some plants of I. purpurea with slightly shorter calyx, or deeply 3-lobed leaves, or shorter peduncles (but not displaying all these features) have been reported as I. hederacea, but all of them lack the prolonged sepal tips of this species.