from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An eastern North American woodland plant (Jeffersonia diphylla) having basal leaves deeply cleft into two kidney-shaped lobes and a solitary white flower borne on a long scape.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. jeffersonia
from the GNU version of the Collaborative International Dictionary of English
- n. See jeffersonia.
from The Century Dictionary and Cyclopedia
- n. An American herb, Jeffersonia diphylla: so named from the pair of leaflets into which the blade of the leaf is divided. See cut on following page.
twin + leaf (Wiktionary)