Description : Asclepias - Bloodflower, Butterfly Weed, Milkweed, Silkweed, Swan Plant (Ascle'pias)
Last Answer : DESCRIPTION: Most of these perennials are from North America, but at least one is from South Africa and one is found in tropical America. Nearly all of these erect plants grow 2 or 3 feet high, but ... A. incarnata (rose-purple); A. Hallii (greenish-white and purple); A. curassavica; A. physocarpa.