Definition of: bladder ketmia

(ket′mē·ə)
1. The flower-of-an-hour, a European annual (Hibiscus trionum) of the mallow family, naturalized in America, with ephemeral pale yellow flowers and a purple-veined, bladderlike calyx.
2. The black-eyed Susan. Also bladder ket·mie (ket′mē).