| Family | RUBIACEAE |
| Genus species | Houstonia wrightii A.Gray |
| Bibliography | Proc. Amer. Acad. Arts 17: 202 (1882) |
| Native Range | Arizona to sw. Texas and Mexico |
| Primary Biome | Subtropical |
| Habitat | stony grassland |
| Altitude | 1500-2600m |
| Description | leaves linear, 5-20mm, connate, flowers axillary, pedicellate, corolla with 3-4mm long tube, spreading lobes 2-3mm long |
| Size | 5-10cm |
| Color | lavender-blue, white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 10-16°C cuttings in late summer |
| Synonyms | Anotis cervantesii (Kunth) DC. Ereicoctis cervantesii (Kunth) Kuntze Hedyotis cervantesii Kunth Hedyotis pumila Willd. ex Roem. & Schult. Hedyotis pygmaea Willd. Hedyotis wrightii (A.Gray) Fosberg Houstonia humifusa Hemsl. |
| Territory | 7 Northern America 76 Southwestern U.S.A. (ARI Arizona) 77 South-Central U.S.A. (NWM New Mexico, TEX Texas) 79 Mexico (MXC Mexico Central, MXE Mexico Northeast, MXG Mexico Gulf) |