Citation: Spach, Hist. Nat. Veg. Phan. 10:286 (1841).

Derivation: From Agetatum, the name of a related genus well-known in horticulture.

Synonymy: Eupatorium L., Sp. Pl. 836 (1753), partly.

Common name: None

Description:
Perennial herbs or undershrubs; vestiture of glandular hairs; leaves cauline, opposite, flat, petiolate, dentate.

Capitula in dense terminal panicles, homogamous; involucres campanulate; bracts herbaceous with scarious margins, hardly imbricate, 1- or 2-seriate; receptacle fiat or slightly convex, naked, pitted; florets numerous, all tubular, bisexual; corolla funnel-shaped, slender below, 5-lobed above; anthers obtuse at the base, with short obtuse appendages at the apex, slightly exserted; style branches with obtuse papillose filiform terminal appendages.

Achenes slender, subterete, angular; pappus uniseriate, of barbellate to plumose bristles.

Distribution:  230 species in North and South America. (R. King & H. Robinson (1970) Phytologia 19:208-229).

Biology: No text

Author: Not yet available