- salsify, oyster plant, vegetable oyster, Tragopogon porrifolius - Mediterranean biennial herb with long-stemmed heads of purple ray flowers and milky sap and long edible root; naturalized throughout United States
--1 is a kind of herb, herbaceous plant
--1 is a member of Tragopogon, genus Tragopogon
--1 has parts: oyster plant, vegetable oyster; salsify, oyster plant