from the GNU version of the Collaborative International Dictionary of English
- n. A genus of small rubiaceous herbs, having tetramerous salveform blue or white flower. There are about twenty species, natives of North America. Also, a plant of this genus.
from The Century Dictionary and Cyclopedia
- n. A genus of dicotyledonous gamopetalous plants, belonging to the natural order Rubiaceæ, tribe Hedyotideæ.
Sorry, no etymologies found.