Houstonia rubra, the red bluet, is a plant species in the Rubiaceae.[2] It is a small herb with red to reddish-purple flowers, native to the southwestern United States and northern and central Mexico: Coahuila, Nuevo León, Hidalgo, Zacatecas, Guanajuato, Puebla, Sonora, Durango, Chihuahua, Arizona, New Mexico, southeastern Utah and western Texas.[1][3][4][5]
Houstonia rubra | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Gentianales |
Family: | Rubiaceae |
Genus: | Houstonia |
Species: | H. rubra |
Binomial name | |
Houstonia rubra Cav. | |
Synonyms[1] | |
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Taxon identifiers |
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