I agree with Singh ji for *Conyza sumatrensis*
<https://efloraofindia.com/species/a---l/ar/asteraceae/asteroideae/astereae/conyza/conyza-sumatrensis>*
(Retz.)
E. Walker* rather than those at *Conyza bonariensis* (L.) Cronquist
<https://efloraofindia.com/species/a---l/ar/asteraceae/asteroideae/astereae/conyza/conyza-bonariensis>

On Sun, 16 May 2021 at 21:29, Saroj Kasaju <[email protected]> wrote:

> I guess this should be *Erigeron bonariensis *L. Syn :
> *Conyza bonariensis *(L.) Cronquist !
> Thank you.
>
> Saroj Kasaju
>
>
> On Sun, May 16, 2021 at 9:39 PM Gurcharan Singh <[email protected]>
> wrote:
>
>> Forwarding for ID
>> Distributed as Conyza species- Kamrup district, Assam
>> <https://sites.google.com/site/efloraofindia/species/a---l/ar/asteraceae/asteroideae/astereae/conyza/conzya-species/kamrup-district-assam>
>> I think C, sumatrensis
>> Group discussion at
>> Asteraceae Fortnight Part I-Radiate heads: Conyza sp. from Kamrup
>> district, Assam- KD 05 (google.com)
>> <https://groups.google.com/g/indiantreepix/c/FmsGrfK4TSQ>
>>
>>
>> ---------- Forwarded message ---------
>> From: [email protected] <[email protected]>
>> Date: Wednesday, May 1, 2013 at 7:26:12 PM UTC+5:30
>> Subject: Asteraceae Fortnight Part I-Radiate heads: Conyza sp. from
>> Kamrup district, Assam- KD 05
>> To: indiantreepix <[email protected]>
>> Cc: [email protected] <[email protected]>
>>
>>
>> Dear All,
>>
>>     I had attached images(1 to 8) in my earlier post where I thought
>>  them as *Conyza bonariensis.* Fortunetly I got hints from Gurcharan Sir
>> Ji  about *C. sumatrensis. *Then I searched other specimen grown in
>> different places of the same region and collected them(Image No. 11 - 13).
>> I then  dissect the reproductive parts of the the specimen and got the
>> following characters. So please ID the Conyza sp. whether it is C. 
>> *bonariensis
>> or **sumatrensis. *
>>
>> Date :10.04..2013 (Images no - 08) & 30.05.13 (Images no. 11-13)
>>
>> Location: Kamrup district
>>
>> Family : Asteraceae
>>
>> Genus & species : C. *bonariensis or **sumatrensis. (?)*
>>
>> Habitat: Grows wild .
>>
>> Habit : Herb, *more than 5 feet (more than 150 cm Image No. 11)*
>>
>> *Inflorescence : *Radiate head .6cm (length) & 0.3-0.4 cm (w);bract two
>> serriate, hairy, *no long hair at the apex of the  bract.*
>>
>> Flower : *Disc floret few,* *.** 6 cm*.; pappus . 4 cm; corolla .5cm, 5
>> lobed, yellow
>>
>>                 *Ray florets(ligulate)  many, .5 cm*, *ligule not
>> distinct*; corolla .4 cm.
>>
>>
>> With regards
>>
>> Karuna Kanta Das
>>
>> Guwahati 781012
>>
>>
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>

-- 
With regards,
J.M.Garg

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