any of a genus (Houstonia
) of small North American plants of the madder
family, with blue, white, or purple flowers, as the bluet
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'houstonia'ModL, after Wm. Houston (1695-1733), Eng botanist