பொருள் : European herb having small white, pink or purple flowers. Naturalized as a weed in North America.
ஒத்த சொற்கள் : common comfrey, symphytum officinale
பொருள் : Perennial herb of southeastern United States having white-rayed flower heads. Formerly used as in folk medicine.
ஒத்த சொற்கள் : agueweed, eupatorium perfoliatum, thoroughwort