Taxonomy
- Taxonomic Rank
- Genus
- Author
- Gronov.
- Publication
- Sp. Pl. : 105 (1753)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Gentianales
- Family
- Rubiaceae
Inferior Taxa
Houstonia canadensis Houstonia croftiae Houstonia micrantha Houstonia palmeri Houstonia prostrata Houstonia rosea Houstonia serpyllifolia Houstonia subviscosa Houstonia wrightii Houstonia macvaughii Houstonia teretifolia Houstonia sharpii Houstonia acerosa Houstonia correllii Houstonia humifusa Houstonia ouachitana Houstonia parviflora Houstonia procumbens Houstonia pusilla Houstonia rubra Houstonia spellenbergii Houstonia purpurea Houstonia longifolia Houstonia caerulea