Yes Muthu ji Then also we compared it a lot with Chromolaena odorata, till Vijayasankar ji sorted it out as Eupatorium glandulosum: now correctly known as Ageratina adenophora.
My Chromolaena frustrata from Delhi still remains unresolved. -- 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/ On Wed, Apr 20, 2011 at 10:54 AM, Muthu Karthick <[email protected]> wrote: > Dear all, > This is an earlier discussion where one of my plant got identified as > *Ageratina > adenophora* (Spreng.) R.King & H. Robinson.: > https://groups.google.com/forum/#!searchin/indiantreepix/Eupatorium/indiantreepix/IUal4Bad-c4/tzIwqiNkxeUJ > > > On Sat, Apr 16, 2011 at 11:17 AM, Dinesh Valke <[email protected]>wrote: > >> Thank you very very much: Gurcharan ji and Vijayasankar ji for making it >> easier for me to understanding the difference between *C. odorata* & *A. >> adenophora* >> >> Have put comparative pictures in a separate post at >> https://groups.google.com/d/topic/indiantreepix/1q-MxdiplDs/discussion >> >> Regards. >> Dinesh. >> >> >> >> >> >> On Sat, Apr 16, 2011 at 10:45 AM, Gurcharan Singh <[email protected]>wrote: >> >>> You are absolutely right Vijayasankar ji. >>> >>> I had seen this plant many a times, mostly as vegetative plant, and >>> always thought it to be a low shrub. >>> >>> * >>> -- >>> 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/ >>> * >>> >>> On Sat, Apr 16, 2011 at 10:37 AM, Vijayasankar <[email protected] >>> > wrote: >>> >>>> Dinesh ji, if you want a shortcut: >>>> * >>>> Ageratina adenophora *ALWAYS occurs in higher altitudes, whereas, >>>> *Chromolaena >>>> odorata *is usually found in plains (may be with some exceptions). >>>> *A.a. *has purplish stems and petioles, while *C.o.* is generally green >>>> throughout. >>>> *A. adenophora *can also be distinguished by its leaves which as >>>> triangular (deltoid) in outline with a more or less truncate (straight) >>>> base >>>> (except subcuneate at petiole). >>>> Hope Gurcharan ji agrees with these (somewhat nontechnical differences). >>>> >>>> Regards >>>> >>>> Vijayasankar Raman >>>> National Center for Natural Products Research >>>> University of Mississippi >>>> >>>> >>>> >>>> On Fri, Apr 15, 2011 at 11:44 PM, Dinesh Valke >>>> <[email protected]>wrote: >>>> >>>>> Many many thanks Gurcharan ji for the clarity. >>>>> Will attempt to put comparative pictures in a separate post. >>>>> >>>>> Regards. >>>>> Dinesh >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> On Sat, Apr 16, 2011 at 9:41 AM, Gurcharan Singh >>>>> <[email protected]>wrote: >>>>> >>>>>> Dinesh ji and Tanay >>>>>> I have seen both and can say they are miles different. I had seen this >>>>>> plant earlier many times mostly in vegetative condition and always >>>>>> thought >>>>>> it to a be some shrub, with leaves much larger and broader than >>>>>> Chromolaena >>>>>> odorata. The inflorescence is also much different, an erect spreading >>>>>> panicle in Ageratina. >>>>>> To me they are so different that I never thought the two can be >>>>>> confused. >>>>>> >>>>>> These are Chromolaena odorata >>>>>> >>>>>> http://www.nt.gov.au/nreta/natres/weeds/alerts/index.html >>>>>> >>>>>> http://toptropicals.com/pics/garden/05/23/3764.jpg >>>>>> >>>>>> http://toptropicals.com/pics/garden/05/23/3765.jpg >>>>>> >>>>>> and these Ageratina adenophora >>>>>> >>>>>> >>>>>> http://www.lookfordiagnosis.com/images.php?term=Ageratina&lang=4&from3=32&from2=24 >>>>>> >>>>>> >>>>>> http://de.wikipedia.org/w/index.php?title=Datei:Ageratina_adenophora_(Habitus).jpg&filetimestamp=20080403122255 >>>>>> >>>>>> http://www.sfwma.org/ageratinaadenophora.html >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>> 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/ >>>>>> >>>>>> >>>>>> On Sat, Apr 16, 2011 at 9:17 AM, tanay bose <[email protected]>wrote: >>>>>> >>>>>>> Great question Dinesh Ji >>>>>>> I too have the same question >>>>>>> Tanay >>>>>>> >>>>>>> >>>>>>> On Fri, Apr 15, 2011 at 8:31 PM, Dinesh Valke < >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> ... 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 < >>>>>>>> [email protected]> 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/ >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> *Tanay Bose* >>>>>>> Research Assistant & Teaching Assistant. >>>>>>> Department of Botany. >>>>>>> University of British Columbia . >>>>>>> 3529-6270 University Blvd. >>>>>>> Vancouver, B.C. V6T 1Z4 (Canada) >>>>>>> Phone: 778-323-4036 (Mobile) >>>>>>> 604-822-2019 (Lab) >>>>>>> 604-822-6089 (Fax) >>>>>>> [email protected] >>>>>>> *Webpages:* >>>>>>> http://www.botany.ubc.ca/people/mberbee.html >>>>>>> http://www.botany.ubc.ca/people/gradstud.html >>>>>>> https://sites.google.com/site/efloraofindia/ >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >>> >>> >> > > > -- > Muthu Karthick, N > Care Earth Trust > #15, second main road, > Thillai ganga nagar, > Chennai - 600 061 > Mob: 0091 96268 33911 > www.careearthtrust.org > >
