The generic name Apocynum, is derived from the Greek "apo" meaning away from, and "kuon" meaning dog, alluding to its ancient use as a dog poison. Ingestion of any part of this plant can cause poisoning and sometimes death to cattle, sheep, and horses. Because the milky sap is bitter, the plants are usually avoided. The bell-shaped flowers have five petals which are united at the base with lobes that separate and curl outward at the tips. A related species, Apocynum cannabinum (Indian Hemp) was an important source of strong fiber for making ropes and baskets.
DISTRIBUTION: Rocky slopes and open places with conifers or chaparral throughout the Calif. Floristic Province and Modoc Plateau; 200-2500 m.