Asclepias viridis is a species of flowering plant in the dogbane family known by the common names green antelopehorn and spider milkweed. It is native to the southcentral and southeastern United States.This milkweed is a perennial herb with alternately arranged leaves. The inflorescence is an umbel of white flowers with purplish centers. Its root system is a taproot, like that of butterfly milkweed (Asclepias tuberosa).
This species grows on many types of soil. It is common in overgrazed pasture ...