Species of plant
Houstonia palmeri, the Saltillo bluet, is a plant species in the family Rubiaceae, native to the Mexican states of Coahuila and Nuevo León.[1][2]
Two varieties are recognized:[3]
- Houstonia palmeri var. palmeri
- Houstonia palmeri var. muzquizana (B.L.Turner) Terrell[2]
References