Wildflowers of Southern Arizona
Madder (Rubiaceae) family.
Plant: Polygamous perennial herb. STEMS variously glabrate, velvety, scabrous or hispid, but hairs not hooked; several to many, 15-50 cm high from suffrutescent bases. Leaves: 4 per node, 7-20 mm long, linear, oblanceolate, rarely elliptic, narrowed gradually to broad insertions, narrowed abruptly to acute, often pungent, apices. Flowers: in diffuse inflorescences, the branchlets divaricate and much exserted; corollas red, pink, or rarely yellow, rotate, mostly glabrous, the tips usually long and slender. FRUITS with long straight hairs. Misc: Moist banks and sheltered slopes, in partial shade; 1000-2650 m (3500-8700 ft); May-Nov.
Santa Catalina Mountains.
Oracle Ridge Trail.
Location: In trail path at base of stone step.
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