Chromolaena odorata or C. frustrata?

[Gurcharan Singh]

Since we are on with the discussion on Chromolaena vs Argentina, I thought it appropriate my photographs from Khalsa College in Delhi, where it is grown as a small hedge (rather as edgings), never allowed to grow higher than 30 cm, but when allowed to grow untrimmed may grow up to 50 cm tall. The leaves of this are much smaller, never broader than 15 mm, mostly 8-10 mm broad, 3-5 cm long. I tried Flora of North America where it fits into C. frustrata. Please comment on this.

 Here is the key:

Leaf blades mostly 1.5–4 cm; involucres 5.5–7.5(–8) mm 3 Chromolaena frustrata

+Leaf blades mostly (3.5–)5–10 cm; involucres (7–)8–10 mm 4 Chromolaena odorata 

--
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]

I think this is Chromolaena odorata

Tanay

--

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)

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ta...@interchange.ubc.ca

Webpages: 

http://www.botany.ubc.ca/people/mberbee.html

http://www.botany.ubc.ca/people/gradstud.html

https://sites.google.com/site/efloraofindia/

[Yazdy Palia]

I think Dr. Gurcharan Singh ji is correct. I do not know anything
about C frastrata, but have somepictures of C. odoreta and the leaves
are different. I must admit here, I am a novice and may be wrong.
Regards
Yazdy.

[Muthu Karthick]

Earlier discussions on this topic: https://groups.google.com/forum/#!searchin/indiantreepix/Eupatorium/indiantreepix/IUal4Bad-c4/tzIwqiNkxeUJ

Also I am attaching photos of similar plant taken at Kew Gardens, London on March 30 2011. 

--
Muthu Karthick, N
Care Earth Trust

#15, second main road,

Thillai ganga nagar,
Chennai - 600 061

Mob: 0091 96268 33911
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[Gurcharan Singh]

Resurfacing again for confirmation

Earlier feedback

Tanay..................................I think this is Chromolaena odorata

Yazdy ji.............................I think Dr. Gurcharan Singh ji is correct. I do not know anything about C frastrata, but have somepictures of C. odoreta and the leaves

are different. I must admit here, I am a novice and may be wrong.

-- 
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/ 

[Dinesh Valke]

... many thanks Gurcharan ji ... did not know of this species of Chromolaena.
Regards.
Dinesh

[Gurcharan Singh]

Resurfacing again for confirmation

Earlier feedback

Tanay..................................I think this is Chromolaena odorata

Yazdy ji.............................I think Dr. Gurcharan Singh ji is correct. I do not know anything about C frastrata, but have somepictures of C. odoreta and the leaves

are different. I must admit here, I am a novice and may be wrong.

-- 
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/ 

---------- Forwarded message ----------
From: Gurcharan Singh <sing...@gmail.com>
Date: Sat, Apr 16, 2011 at 11:33 AM
Subject: Chromolaena odorata or C. frustrata?
To: efloraofindia <indian...@googlegroups.com>

[J.M. Garg]

Resurfacing again for confirmation
Earlier feedback
Tanay..................................I think this is Chromolaena odorata

Yazdy ji.............................I think Dr. Gurcharan Singh ji is correct. I do not know anything about C frastrata, but have some pictures of C. odoreta and the leaves are different. I must admit here, I am a novice and may be wrong.
Muthu ji .............................Earlier discussions on this topic: https://groups.google.com/forum/#!searchin/indiantreepix/Eupatorium/indiantreepix/IUal4Bad-c4/tzIwqiNkxeUJ

Also I am attaching photos of similar plant taken at Kew Gardens, London on March 30 2011.

---------- Forwarded message ----------
From: Gurcharan Singh <sing...@gmail.com>
Date: 16 April 2011 11:33
Subject: [efloraofindia:67301] Chromolaena odorata or C. frustrata?
To: efloraofindia <indian...@googlegroups.com>

--

With regards,
J.M.Garg (jmg...@gmail.com)
http://en.wikipedia.org/wiki/User:Jmgarg1

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