Plant: Small cespitose perennials; woody taproots; stems 2-18(-32) cm tall, slender Leaves: linear, elliptic, or oblanceolate, 5-15(-30) mm long, 0.5-4 mm wide, spreading INFLORESCENCE: cymose Flowers: heterostylous, cymose, subsessile or on pedicels to ca. 6 mm long; corollas 3.5-9.5 mm long, funnelform or salverform, purple, pink, or white Fruit: FRUITS 1-3 mm long, 2-4 mm wide, thick-walled, 1/8-1/2 inferior, on recurved pedicels; SEEDS 0.7-1.7 mm long with hilar ridge in a cup-shaped concavity Misc: Rocky slopes, grassland, oak-juniper or ponderosa pine forests; 1200-4000m (4000-13000 ft); May-Oct REFERENCES: Terrell, Edward E. 1995 Rubiaceae. Houstonia. J. Ariz. – Nev. Acad. Sci. 29(l): 36.