FORM herbs and shrubs
Species 1500 in our area 11 (Gray); (B&B)43
Distribution greatest diviersity in tropics and subtropics. Most common genus in or area Apocynum dogbanes.
#Parts calyx 5 fused sepals, 5 fused petals forming a bell-shaped corolla, 5 stamens.
Leaves simple entire leaves, opposite or in whorls.
Most members have a milky juice, some are poisonous. Related to Milkweeds.