Canada's Plant Hardiness Site

Rubiaceae madder family
Houstonia caerulea L.
En: azure bluets, Quaker ladies, innocence, mountain bluets;
Fr: houstonie bleue

• [=Hedyotis caerulea (L.) Hook.]
• [=Houstonia caerulea L. var. faxonorum Pease & A.H.Moore]
• [=Oldenlandia caerulea (L.) A.Gray]