2 photos. Gomphocarpus physocarpus E. Mey συν. Asclepias physocarpa (E.Mey.) Schltr., Γομφόκαρπος ο φυσόκαρπος συν. Ασκληπιάς η φυσόκαρπος, Balloon milkweed, Bishop’s balls, Elephant balls, Hairy balls, Monkey balls, Swan plant (naturalized)