| tragopogon | (n) genus of Old World herbs with linear entire leaves and yellow or purple flower heads, Syn. genus Tragopogon |
| meadow salsify | (n) weedy European annual with yellow flowers; naturalized in United States, Syn. shepherd's clock, Tragopogon pratensis, goatsbeard |
| salsify | (n) Mediterranean biennial herb with long-stemmed heads of purple ray flowers and milky sap and long edible root; naturalized throughout United States, Syn. vegetable oyster, oyster plant, Tragopogon porrifolius |
| yellow salsify | (n) European perennial naturalized throughout United States having hollow stems with a few long narrow tapered leaves and each bearing a solitary pale yellow flower, Syn. Tragopogon dubius |