In spite of trying a lot I have not been able to fix the identity of this plant. Pl. help.
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


Earlier discussion thread in this matter

Chromolaena odorata or C. frustrata?: 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 <http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066334>
* <http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066334>*

+Leaf blades mostly (3.5–)5–10 cm; involucres (7–)8–10 mm 4 *Chromolaena odorata* <http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242312602>


I think this is Chromolaena odorata


I think… 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.


Earlier discussions on this topic: https://groups.google.com/forum/#!searchin/indiantreepix/Eupatorium/i… <https://groups.google.com/forum/#!searchin/indiantreepix/Eupatorium/i…>

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


 

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