This species is closely related to the more northern straminea, with the same chromosome number; 2n = 74. C. alata has a wide south-central range, mostly near the coast but also scattered inland. The only Ky. records are colls. from marshy places in LOGA, MCRA and TODD (AP). It has also been collected from nearby counties in Tenn. (Montgomery and Robertson); see APSC and Ch.