| Family | BERBERIDACEAE |
| Genus species | Jeffersonia diphylla (L.) Pers. |
| Bibliography | Syn. Pl. 1: 418 (1805) |
| Native Range | Ontario to nc. & e. USA |
| Primary Biome | Temperate |
| Habitat | thickets and woods |
| Altitude | 100-800m |
| Description | leaves reniform, deeply incised into two, dentate, grey-green segments, long petiolate, flowers usually before leaves, openly campanulate |
| Size | 20-30cm |
| Color | white |
| Bloom | spring |
| Ca | - |
| Type | perennial |
| Cultivation | cold, shady site with a humous, moist soil alpine house, moist, humous soil, shade |
| Propagation | seed in winter, germ. 3-12 months, 13-16°C division after flowering; cuttings in late summer |
| Synonyms | Jeffersonia bartonis Michx. Jeffersonia binata Bart. Jeffersonia lobata Nutt. Jeffersonia odorata Raf. Podophyllum diphyllum L. Vindicta begoniifolia Raf. |
| Territory | 7 Northern America 72 Eastern Canada (ONT Ontario) 74 North-Central U.S.A. (ILL Illinois, IOW Iowa, MIN Minnesota, WIS Wisconsin) 75 Northeastern U.S.A. (INI Indiana, MIC Michigan, NWY New York, OHI Ohio, PEN Pennsylvania, WVA West Virginia) 78 Southeastern U.S.A. (ALA Alabama, GEO Georgia, KTY Kentucky, MRY Maryland, NCA North Carolina, TEN Tennessee, VRG Virginia) |