bio.wikisort.org - Plant

Houstonia acerosa, the New Mexico bluet or needleleaf bluet, is a plant species native to Chihuahua, Coahuila, Nuevo León, Tamaulipas, San Luis Potosí, Texas and New Mexico.[1][2][3][4]

Houstonia acerosa
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Rubiaceae
Genus:	Houstonia
Species:	H. acerosa
Binomial name
Houstonia acerosa (A.Gray) Benth. & Hook.f.
Synonyms[1][2]
Ereicoctis acerosa (A.Gray) Kuntze Hedyotis acerosa A.Gray Hedyotis acerosa var. potosina B.L.Turner Hedyotis polypremoides var. bigelovii Greenm. Mallostoma acerosum (A.Gray) Hemsl. Oldenlandia acerosa (A.Gray) A.Gray

Houstonia acerosa is an herb up to 20 cm tall, with narrow needle-like leaves and white or purplish flowers.[5][6][7]

Varieties

Three varieties of the species are widely accepted:[1][2]

• Houstonia acerosa var. acerosa - Coahuila, Nuevo León, Tamaulipas, San Luis Potosí, Texas[7]
• Houstonia acerosa var. polypremoides (A.Gray) Terrell - Chihuahua, Coahuila, New Mexico, trans-Pecos Texas[7]
• Houstonia acerosa var. tamaulipana (B.L.Turner) Terrell - Tamaulipas[7]

References

External links

• Photo of herbarium specimen at Missouri Botanical Garden, Wright 237, type specimen of Houstonia acerosa
• Gardening Europe Houstonia acerosa
• Chihuahuan Desert Plants, University of Texas at El Paso, Hedyotis acerosa

---