澤蘭屬; 佩蘭屬
Eupatorium \Eu`pa*to"ri*um\, n. [NL., fr. Eupator, king of Pontus, said to have used it as a medicine.] (Bot.) A genus of perennial, composite herbs including hemp agrimony, boneset, throughwort, etc.
Eupatorium n : large genus of chiefly tropical herbs having heads of white or purplish flowers [syn: {genus Eupatorium}]