perennial south European herb having narrow entire leaves and solitary yellow flower heads and long black-skinned carrot-shaped edible roots

long black-skinned salsify

Also called "black salsify," this is a black-skinned variety of salsify. Most varieties of this vegetable are grayish or pale golden in color.

Scorzonera is a genus of the sunflower family (Asteraceae), subfamily Lactucoideae, tribe Lactuceae, subtribe Scorzonerinae.