Asclepias viridis

Green Milkweed shares with other Asclepias species its milky, irritating sap and strong attractiveness to Monarch butterflies and a host of other insects. Very tolerant of dry conditions, it is also called Green Antelopehorn. Green Milkweed features rose-white flowers surrounded by green that form in showy umbellated clusters, often one per plant. Its beauty and tendency to spread slightly make it a good garden choice. White crab spider lives on this plant.