(perennial south European herb having narrow entire leaves and solitary yellow flower heads and long black edible roots shaped like carrots)
black salsify, viper's grass, scorzonera, Scorzonera hispanica
synonim: wężymord czarny korzeń
synonim: skorzonera

viper's herb

black salsify

Spanish salsify

viper's grass

black oyster plant

Scorzonera hispanica

serpent root