| Houstonia palmeri | |
|---|---|
| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Asterids | 
| Order: | Gentianales | 
| Family: | Rubiaceae | 
| Genus: | Houstonia | 
| Species: | H. palmeri  | 
| Binomial name | |
| Houstonia palmeri A.Gray  | |
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
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