[hju:s'tәuniә]
n.
茜草科小植物(北美产,开蓝、白或紫色花)

Houstonia \Hous*to"ni*a\, n. [NL. So named after Dr. William
Houston, an English surgeon and botanist.] (Bot.)
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.
[Webster 1913 Suppl.]