Balsaminaceae, Geraniaceae and Oxalidaceae Week: Oxalidaceae-Oxalis latifolia

[Gurcharan Singh]

Oxalis latifolia Kunth in Humboldt, Bonpland & Kunth, Nov. Gen. Sp. 5[qto.]: 237, plate 467. 1821 [1822].

Syn: Acetosella violacea subsp. latifolia (Kunth) Kuntze, 1891. Ionoxalis latifolia (Kunth) Rose, 1906.; 

Oxalis amplifolia (Trel.) R. Knuth, 1919 (non [Trel.] Tidestrom 1923).; Ionoxalis amplifolia (Trel.) Rose, 1906.

The species is distinct from Oxalis intermedia in leaves usually arising from a single bulb, leaflets smaller (15-40 mm long), less broader, mostly obcordate to obtriangular but with rounded and obtuse (and not acute) tips, a clearer notch and forming fruits more frequently.

Photographed from Kashmir University Campus  

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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://www.gurcharanfamily.com/ 
http://people.du.ac.in/~singhg45/

[Balkar Singh]

Nice Shots Sir

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Dr Balkar Singh
Head, Deptt. of Botany and Biotechnology & 

Horticulture Incharge
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09416262964

[Nidhan Singh]

Thanks sir for sharing these lovely pictures...

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Regards,

Dr. Nidhan Singh

Assistant Professor
Department of Botany
I.B. (PG) College
Panipat-132103 Haryana
Ph.: 09416371227

[Gurcharan Singh]

Distributed as Oxalis latifolia subsp. latifolia (Introduced)

As O. dehradunensis and O. latifolia are now treated as distinct species

1. Oxalis latifolia H.B.K: longer stamen filaments 5-6 mm long, hairy in upper part with 1 mm long appendages on outside; shorter filaments glabrous or sparsely hairy; leaves larger upto 5 cm long, upto 8 cm wide; flowers light purple with green throat; umbela 5-20 flowered

1. Oxalis dehradunensis: (syn: O. latifolia auct. plur. (non H.B.K.), O. intermedia A. Rich.): Longer filaments 4 mm long, pubescent, without appendages, short ones hairy; leaves smaller 1.5 cm long, 3 cm wide; flowers purple violet; flowers 5-6 flowered. 

Yes this is O. latifolia, see larger leaves and flowers

Group discussion at 

Balsaminaceae, Geraniaceae and Oxalidaceae Week: Oxalidaceae-Oxalis latifolia (google.com) 

[Gurcharan Singh]

Distributed as Oxalis latifolia subsp. latifolia (Introduced)

As O. dehradunensis and O. latifolia are now treated as distinct species

1. Oxalis latifolia H.B.K: longer stamen filaments 5-6 mm long, hairy in upper part with 1 mm long appendages on outside; shorter filaments glabrous or sparsely hairy; leaves larger upto 5 cm long, upto 8 cm wide; flowers light purple with green throat; umbel 5-20 flowered

1. Oxalis dehradunensis: (syn: O. latifolia auct. plur. (non H.B.K.), O. intermedia A. Rich.): Longer filaments 4 mm long, pubescent, without appendages, short ones hairy; leaves smaller 1.5 cm long, 3 cm wide; flowers purple violet; umbel 5-6 flowered. 

Yes this is O. latifolia, see larger leaves and flowers

Group discussion at 

Balsaminaceae, Geraniaceae and Oxalidaceae Week: Oxalidaceae-Oxalis latifolia (google.com) 

[Gurcharan Singh]

Since two species are now treated as distinct we need to know the original description of O. dehradunensis to know exact differences between the two besides the differences in stamen filaments mentioned by me. Other characters mentioned by me seem to vary. I must be mentioned that Raizada (1976) did not describe a new species, and rather gave a new name to O. intermedia A. Rich., 1841 described from Cuba, a name that could not stand because it was given earlier by Steudel (1840; based on Biophytum intermedium Wight, 1839) to a different species (now synonym of Biophytum intermedium Wight). This is what I could find from eFlora of North America where both species (O. intermedia A Rich and O. latifolia) are described:

O. dehradunensis (syn: O. intermedia A Rich.)                    O. latifolia

1. Bulbs usually clustered, stolons present                          1. Bulb solitary, stolons absent

2. Leaflet lobes truncate at apex                                          2. leaflet lobes rounded at apex

3. Flowers tristylous                                                             3. Flowers semihomostylus

4.  longer stamen filaments 5-6 mm long, hairy in upper     4. Longer filaments 4 mm long, pubescent, without

     part with 1 mm long appendages on outside; shorter         appendages, short ones hairy; leaves smaller    

     filaments glabrous

5. Capsule ellipsoid, 3-8 mm.                                                5. Capsule cylindric 4-6 mm

Leaves being slightly folded are not very clear. If you want to see leaves of O. latifolia clearly here they are

Biodiversity of Cyprus by NGO Protection of the Natural Heritage and the Biodiversity of Cyprus: Oxalis latifolia Kunth - Cyprus (biodiversitycyprus.blogspot.com)

Oxalis latifolia (freenatureimages.eu)

PlantFiles Pictures: Oxalis Species, Broadleaf Wood Sorrel, Garden Pink-Sorrel, Mexican Oxalis (Oxalis latifolia) by sunkissed (davesgarden.com)

[J.M. Garg]

Thanks, Singh ji,

I think the correct wording will be as below:

O. dehradunensis (syn: O. intermedia A Rich.)                    O. latifolia

1. Bulbs usually clustered, stolons present                          1. Bulb solitary, stolons absent

2. Leaflet lobes truncate at apex                                          2. leaflet lobes rounded at apex

3. Flowers tristylous                                                             3. Flowers semihomostylus

4.  Longer filaments 4 mm long, pubescent, without  

    appendages, short ones hairy; leaves smaller                4.  longer stamen filaments 5-6 mm long, hairy in upper part with 1 mm long 

                                                                                                  appendages on outside; shorter filaments glabrous                

5. Capsule ellipsoid, 3-8 mm.                                              5. Capsule cylindric 4-6 mm

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With regards,
J.M.Garg