... looks confusingly closer to *Chromolaena odorata*. Gurcharan ji ... any clear visual key to separate the species ?
Regards. Dinesh On Sat, Apr 16, 2011 at 8:37 AM, Gurcharan Singh <singh...@gmail.com> wrote: > Ageratina adenophora (Spreng.) R. M. King & H. Rob., Phytologia 19:211. > 1970 > syn: *Eupatorium adenophorum* Spreng.; *Ageratina trapezoidea* (Kunth) R. > M. King & H. Rob.; *Eupatorium glandulosum* Michx.; *Eupatorium > trapezoideum* Kunth > > Perennial coarse herb; leaves opposite, ovate-deltoid, up to 10 cm long, > 4-7 cm broad with broadly cuneate or truncate base, sparsely pilose on both > surfaces, 3-nerved, margins crenate, on 4-5 cm long petiole; Heads white > 6-8 mm long, 5-6 mm across, in loose compound corymbs, receptacle > glabrous,; achenes black, 1.5 mm long, 5-angular, glabrous; pappus of 8-10 > bristles. > > Native of Mexico, California and the West Indies, widely naturalised in > tropical to subtropical areas. Photographed from Morni hills at about 1200 m > on April 9, 2011. > > Common names: catweed, Crofton weed, croftonweed, hemp-agrimony, Maui > pamakani, Mexican-devil, sticky-agrimony > -- > Dr. Gurcharan Singh > Retired Associate Professor > SGTB Khalsa College, University of Delhi, Delhi-110007 > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > Phone: 011-25518297 Mob: 9810359089 > http://people.du.ac.in/~singhg45/ > >
