flowe id...place-ambala cantt....habitat-roadside

[ankush prakash]

Please help me to identify this plant

Place-ambala cantt
Month-Jan
habitat-roadside
Height-about 1.5 feet

Regards
Ankush Prakash

[Madhuri Raut]

I think it is Ageratum conyzoides family  Asteraceae

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Regards

Dr.Bhagyashri Ranade

[Gurcharan Singh]

Yes Ageratum conyzoides

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Dr. Gurcharan Singh
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[J.M. Garg]

I think closer to Ageratum houstonianum as per details and keys herein.

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[Gurcharan Singh]

Ageratum conyzoides I hope

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

Mob: 9810359089

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[J.M. Garg]

Thanks, Singh ji,

Details are not clear due to smaller images.

But I think it is more closer to Ageratum houstonianum rather than Ageratum conyzoides as per keys and details herein.

[dr.rakesh Singh]

Leaf base as much seen , is not cordate ... which I have  found every time I met with A. houstonianum . Plus , head size is not really that big ! 

I wd say A. conyzoides . 

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[J.M. Garg]

Thanks, Rakesh ji.

I do not agree.

Pl. see details and comparative images at ‎Ageratum

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[Gurcharan Singh]

Two characters are significant in differentiating these species. Leaves truncate to cordate at base, involucre bracts narrowly lanceolate, less than 1 mm broad, gradually narrowed to subulate tip 1-2 mm long in A. houstonianum. In A. conyzoides leaves are narrowed at base, involucre bracts oblong to oblong-lanceolate, suddenly narrowed at tip to less than 1 mm long point. I have downloaded and enlarged last two images, the involucre bracts also match A. conyzoides. The conflict seems to be too much long hairs on bracts and peduncle.  

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[Saroj Kumar Kasaju]

I guess Ageratum houstonianum is more close.

Thank you

Saroj Kasaju

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[J.M. Garg]

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J. M. Garg

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