Oxalis obliquifolia from Delhi University Flower Show

[Gurcharan Singh]

Oxalis obliquifolia Steud. ex A. Rich., Tent. Fl. Abyss. 1: 123 1847.

syn: Acetosella obliquifolia (Steud. ex A. Rich.) Kuntze

  

This beautiful Oxalis was displayed in Delhi University Flower Show on February 25, 2011.

--
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/

[mani nair]

Gurcharan ji, beautiful flowers.
Thanks for sharing,
Regards,
Mani.

[tanay bose]

awesome catch

tanay

--

Tanay Bose

Research Assistant & Teaching Assistant.
Department of Botany.
University of British Columbia .
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Phone: 778-323-4036 (Mobile)

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ta...@interchange.ubc.ca

Webpages: 

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[Tabish]

Dear Gurcharan ji,
Sorry for the late response. To me this looks like Oxalis
purpurea. Please see the following links
http://www.pacificbulbsociety.org/pbswiki/index.php/SouthAfricanOxalisEight
http://calphotos.berkeley.edu/cgi/img_query?enlarge=8253+3202+4147+0133
Best wishes
- Tabish

[Gurcharan Singh]

Tabish ji

I had also considered O. rosea but perhaps deeply obcordate leaves and leafy stem discouraged me. Here is the description O. rosea from Hortus Third:

Erect much-branched leafy-stemmed annual, to 18 inch; petioles to 1 inch long, leaflets 3, obcordate, to 1/4 inch long; fls rose with darker veins and white throat, in loose several-flowered cymes, peduncles 3-8 inch long. 

http://davesgarden.com/guides/pf/showimage/131874/

My plant has larger leaflets (nearly 1 inch long) with mostly rounded tips (or slightly retusetip), the base cuneate and leaflets with ciliate margin. flowers occurring singly,  It matches with: 

http://davesgarden.com/guides/pf/showimage/90715/

This plant is much closer to O. depressa which according to Hortus Third is "Nearly stem-less, bulbous, rhizomatous perennial; leaflets 3, rounded or subtriangular, 1/4 inch long, cuneate or attenuate at base, glabrous or sparingly ciliate; fls white, rosy or violet with yellow tube, 1 1/4 inch long, solitary on peduncles longer than leaves".

My plant has larger thicker leaves, ciliate on margin, pink flowers with yellow throat. Single flower is common in both species, a rather important character within genus Oxalis to differentiate species.

 

-- 
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/ 

[J.M. Garg]

Forwarding again for Id confirmation or otherwise please.

Some earlier relevant feedback:

“Dear Gurcharan ji,

   Sorry for the late response. To me this looks like Oxalis
purpurea. Please see the following links
 http://www.pacificbulbsociety.org/pbswiki/index.php/SouthAfricanOxalisEight
 http://calphotos.berkeley.edu/cgi/img_query?enlarge=8253+3202+4147+0133
 Best wishes

 - Tabish”

 

“Tabish ji

I had also considered O. rosea but perhaps deeply obcordate leaves and leafy stem discouraged me. Here is the description O. rosea from Hortus Third:

Erect much-branched leafy-stemmed annual, to 18 inch; petioles to 1 inch long, leaflets 3, obcordate, to 1/4 inch long; fls rose with darker veins and white throat, in loose several-flowered cymes, peduncles 3-8 inch long.
http://davesgarden.com/guides/pf/showimage/131874/
My plant has larger leaflets (nearly 1 inch long) with mostly rounded tips (or slightly retusetip), the base cuneate and leaflets with ciliate margin. flowers occurring singly,  It matches with:
http://davesgarden.com/guides/pf/showimage/90715/
This plant is much closer to O. depressa which according to Hortus Third is "Nearly stem-less, bulbous, rhizomatous perennial; leaflets 3, rounded or subtriangular, 1/4 inch long, cuneate or attenuate at base, glabrous or sparingly ciliate; fls white, rosy or violet with yellow tube, 1 1/4 inch long, solitary on peduncles longer than leaves".
My plant has larger thicker leaves, ciliate on margin, pink flowers with yellow throat. Single flower is common in both species, a rather important character within genus Oxalis to differentiate species. 

--

Dr. Gurcharan Singh”

--

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

'Creating awareness of Indian Flora & Fauna'
The whole world uses my Image Resource of more than a thousand species & eight thousand images of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise): http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use them for free as per Creative Commons license attached with each image.

For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group: http://groups.google.co.in/group/indiantreepix (more than 1630 members & 73,000 messages on 30/6/11) or Efloraofindia website: https://sites.google.com/site/efloraofindia/ (with a species database of around 5000 species)

[J.M. Garg]

Forwarding again for Id confirmation or otherwise please.

Some earlier relevant feedback:

“Dear Gurcharan ji,   Sorry for the late response. To me this looks like Oxalis
purpurea. Please see the following links
 http://www.pacificbulbsociety.org/pbswiki/index.php/SouthAfricanOxalisEight
 http://calphotos.berkeley.edu/cgi/img_query?enlarge=8253+3202+4147+0133
 Best wishes - Tabish”

“Tabish ji

I had also considered O. rosea but perhaps deeply obcordate leaves and leafy stem discouraged me. Here is the description O. rosea from Hortus Third:

Erect much-branched leafy-stemmed annual, to 18 inch; petioles to 1 inch long, leaflets 3, obcordate, to 1/4 inch long; fls rose with darker veins and white throat, in loose several-flowered cymes, peduncles 3-8 inch long.
http://davesgarden.com/guides/pf/showimage/131874/
My plant has larger leaflets (nearly 1 inch long) with mostly rounded tips (or slightly retusetip), the base cuneate and leaflets with ciliate margin. flowers occurring singly,  It matches with:
http://davesgarden.com/guides/pf/showimage/90715/
This plant is much closer to O. depressa which according to Hortus Third is "Nearly stem-less, bulbous, rhizomatous perennial; leaflets 3, rounded or subtriangular, 1/4 inch long, cuneate or attenuate at base, glabrous or sparingly ciliate; fls white, rosy or violet with yellow tube, 1 1/4 inch long, solitary on peduncles longer than leaves".
My plant has larger thicker leaves, ciliate on margin, pink flowers with yellow throat. Single flower is common in both species, a rather important character within genus Oxalis to differentiate species.
--
Dr. Gurcharan Singh”

---------- Forwarded message ----------
From: Gurcharan Singh <sing...@gmail.com>
Date: 19 March 2011 19:59
Subject: [efloraofindia:65158] Oxalis obliquifolia from Delhi University Flower Show
To: efloraofindia <indian...@googlegroups.com>, Flowers of India <flowers...@gmail.com>, Tabish <tab...@gmail.com>

--

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

'Creating awareness of Indian Flora & Fauna'
The whole world uses my Image Resource of more than a thousand species & eight thousand images of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise): http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use them for free as per Creative Commons license attached with each image.

For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group: http://groups.google.co.in/group/indiantreepix (more than 1725 members & 85,000 messages on 30/9/11) or Efloraofindia website: https://sites.google.com/site/efloraofindia/ (with a species database of around 5500 species).

Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of India'. 

[Gurcharan Singh]

Finally we agreed on Oxalis purpurea

-- 
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/