| |||
English serpentary (Polygonum bistorta); adder's wort (Polygonum bistorta) | |||
serpent grass (Polygonum bistorta); snake-root knotgrass (Polygonum bistorta); snakeroot (Polygonum bistorta); snakeweed (Polygonum bistorta) | |||
bistort (Polygonum bistorta); European bistort; snake root (Polygonum bistorta); English serpentary (Polygonum bistorta) | |||
snakeweed | |||
adder'd wort (Polygonum bistorta) |