Convolvulaceae | |
Volvulus sepium var. americanus
| (Sims) Farw. | Rep. (Annual) Commiss. Parks Boulevards Detroit 11: 81 | 1900 |
Convolvulaceae | |
Volvulus sepium var. biangulosagittatus
| Kuntze | Revis. Gen. Pl. 2: 447 | 1891 |
Convolvulaceae | |
Volvulus sepium var. pubescens
| (A. Gray) Farw. | Amer. Midl. Naturalist 12(4): 130–131 | 1930 |