Citation: R. King & H. Robinson, Phytologia 19:211 (1970).

Synonymy: Eupatorium adenophorum Sprengel Syst. Veg. 3:420 (1826).

Common name: Crofton weed.

Description:
Herbs, often annual, with a milky latex, never aromatic; leaves alternate or radical, simple to pinnatipartite.

Capitula homogamous, solitary or in loose inflorescences but never aggregated into compound heads; involucral bracts 1- to many-seriate, herbaceous, free to partially connate; receptacular scales scarious or absent; florets all ligulate, bisexual, with 5 stamens and a minutely 5-toothed ligule; anthers auriculate to tailed at the base, with very small terminal appendages; style branches subterete, stigmatic on the inner surface, papillose.

Achenes all similar or the outer series differentiated; pappus of bristles, rarely scarious or absent.

Distribution:  70 genera worldwide, most numerous in the northern temperate zone. Represented in Australia by many naturalised opportunists in disturbed habitats including serious weeds such as Chondrilla, and by a few native species of largely extra-Australian genera. S.Aust.: SL, SE.   All mainland States.   Native to Mexico. Conservation status: naturalised Flowering time: Sept. — Nov.

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: No text

Author: Not yet available