tinker's root

Từ điển WordNet v3.1 - WordNet Dictionary

noun

coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers
• Syn:
feverroot, horse gentian, wild coffee, Triostium perfoliatum
• Hypernyms:
herb, herbaceous plant
• Member Holonyms:
Triostium, genus Triostium