| Rheum L. [162] | |
| F.G. Hayne, Getreue Darstell. Gew., vol. 12 : t. 6 (1833) [49] | |
| Illustration contributed by: | Royal College of Physicians of Edinburgh, U.K. |
F.G. Hayne, Getreue Darstell. Gew., vol. 12 : t. 6 (1833)