ETYM French salsifis.
1. Mediterranean biennial herb with long-stemmed heads of purple ray flowers and milky sap and long edible root; naturalized throughout United States; SYN. oyster plant, vegetable oyster, Tragopogon porrifolius.
2. Edible root of the salsify plant; SYN. oyster plant.
3. Either of two long roots eaten cooked.
Or vegetable oyster; Hardy biennial Tragopogon porrifolius, family Compositae. Its white fleshy roots and spring shoots are cooked and eaten.
Purple-flowered plant, with root (called “oyster plant”) boiled as vegetable.