(Houstonia acerosa)
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. Houstonia acerosa is an herb up to 20 cm tall, with narrow needle-like leaves and white or purplish flowers.