mature follicle of asclepias syriaca. common milkweed, butterfly flower, silkweed, silky swallow-wort, virginia silkweed

swallowwort environment ornamental pollinator herbaceous asclepias butterfly flowering perennial botanical landscape follicle milkweed silkweed virginia seasonal delicate syriaca outdoor natural ecology seedpod closeup vibrant mature common flower clonal nature unique silky plant forb