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Houstonia humifusa

Houstonia humifusa

Houstonia humifusa, commonly called matted bluet,[3] is a plant species in the coffee family (Rubiaceae).[2] It is native to the United States, where it is found in Texas, Oklahoma, and New Mexico.[4] It is typically found in sandy areas, or sometimes over gypsum.[5]

Houstonia humifusa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Genus: Houstonia
H. humifusa
Binomial name
Houstonia humifusa
(Engelm. ex A.Gray) A.Gray[1]
  • Hedyotis humifusa Engelm. ex A.Gray
  • Oldenlandia humifusa (Engelm. ex A.Gray) A.Gray

Houstonia humifusa is an herbaceous annual, growing to around 15 cm tall. It produces light pink and purple flowers in spring and early summer.[5]


  1. Gray, Asa. 1859. Proceedings of the American Academy of Arts and Sciences 4: 314, Houstonia humifusa
  2. Kew World Checklist of Selected Plant Families
  3. USDA, NRCS (n.d.). "Houstonia humifusa". The PLANTS Database ( Greensboro, North Carolina: National Plant Data Team. Retrieved 15 May 2015.
  4. Biota of North America Program
  5. Diggs, George; Lipscomb, Barney; O'Kennon, Robert (1999). Flora of North Central Texas. Botanical Research Institute of Texas. p. 967.

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