Jeffersonia diphylla (L.) Pers.
Engl.: twinleaf, ground-squirrel pea, helmetpod, rheumatism-root, yellowroot.
Deu.: Zwillingsblatt.
Bot. syn.: Jeffersonia binata Bart., Jeffersonia lobata Nutt., Jeffersonia odorata Raf., Podophyllum diphyllum L.
Classic texts: King's 1898.
Classic texts: Rafinesque 1828-1830.
Plants. Botanical garden Kumpula, Helsinki, Finland. Planted. 2004-09-17.
Classic texts: USDisp 1918.
Classic texts: Scudder 1870.
Classic texts: Sayre 1917.
Classic texts: Harding 1936.
Classic texts: Felter 1922.
Classic texts: Cook 1869.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.
