Fabaceae-Faboideae (Papilionaceae) Week: Lespedeza sp. from Chakrata Tiger fall area

[Gurcharan Singh]

Undershrub with robust trailing branches; leaves trifoliate up to 2.5 cm long, and red flowers in axillary clusters.

Photographed from Chakrata Tiger fall road in September.

--
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/

[Dinesh Valke]

Many thanks Gurcharan ji for showing new genus.
Regards.
Dinesh

[Gurcharan Singh]

Resurfacing again for Species ID

-- 
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/ 

[Vijayasankar]

Gurcharan ji,

Could this be an Indigofera species? I think pods of Lespedeza are 1-seeded. I may be wrong though.

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

[Gurcharan Singh]

Vijayasankar ji, you are never wrong

I never knew Indigofera has a few species with trifoliate leaves, so perhaps ignored the pod length.

Yes it matches with Indigofera trifoliata L. with leaflets gland-dotted on under surface, racemes almost sessile, bright red corolla , bristle-like calyx teeth and pubescent deflexed pod with weak wings.

Thanks a ton for this great lead.

-- 
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/ 

[Vijayasankar]

Thanks Gurcharan ji, for the nice words and also for the validation.
I agree with your id : I. trifoliata.

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

[H S]

Surely Indigofera, but to me it look more like I. trita

regards,

--

 - H.S.

A scientific man ought to have no wishes, no affections, - a mere heart of stone

[Gurcharan Singh]

Dear H S

I did consider I. trita seriously but went for I. trifoliata because:

1. the pods appear winged.

2. under surface of leaf is gland-dotted

3. according to eflora of Pakistan inflorescence may be up to 4.5 cm long in I. trita, here it is sessile

4. I trifoliata is reported from the area, not I. trita

Enclosing some more close ups 

-- 
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/ 

[Gurcharan Singh]

I just came across the description in Herbaceous Flora of Dehradun  by C R Babu, adjacent to our Chakrata. He reports Indigofera prostrata from the area, a species that was treated under I. trifoliata in FBI and few other Floras, but as distinct species by Gamble, Babu and now The Plant list. According to Babu the two are differentiated as under:

Indigofera trifoliata: perennial, stout stems, leaflets shallowly notched, stout; pod 8-10 mm long, 2 mm broad, 4-6 seeded; sutures winged, seeds as long as broad.

Indigofera prostrata: annual, slender stems, leaflets obtuse mucronate, slender; pod 13-15 mm long, 1 mm broad, 8-9 seeded, faintly winged; seeds longer than broad.   

In above photographs leaves appear mucronate, but other things don't match I. prostrata they rather approach I. trifoliata. 

Your comments please.

-- 
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/ 

[Vijayasankar]

I consider the posted plant as Indigofera trifoliata, mainly due to the prominent wings. I. prostrata is a prostrate herb with very narrowly winged pods. It is not I. trita for sure.

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

[Gurcharan Singh]

Thanks Vijayasankar ji again

-- 
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/ 

[Satish Phadke]

Just to complete the discussion please try to answer my query too...
Why it is not Indigofera glandulosa?

--
Dr Satish Phadke

[Gurcharan Singh]

Satish ji

You are right to point out the possibility. Interestingly it is also reported in Herbaceous Flora of Dehradun. Here are characteristics of three suspected species:

I. trifoliata                                         I. prostrata                                    I. glandulosa

1. Perennial, stout stems                   Annual, slender erect stems          Annual, slender erect stems

2. Leaflets shallowly notched             leaflets obtuse or mucronate          leaflets obtuse or mucronate

3. lower surface black-gland dotted    orange-gland dotted                       brown-gland dotted

4. pod 8-10 mm long, 4-6 seeded       pod 13-15 mm long, 6-9 seeded     pod 5-6 mm long, 1-2 seeded

5. pod distinctly winged                     pod faintly winged                         pod distinctly winged, wings toothed

6. seed as long as broad                   seed as long as broad                   seed longer than broad

Based on length of pod and wings, it appears closer to I. trifoliata, but others are also very close.

-- 
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]

Appears closer to images of Indigofera glandulosa Wendl. by Anurag ji & Prashant Ji, rather than images of Indigofera trifoliata L. by Dinesh ji.

---------- Forwarded message ----------
From: Gurcharan Singh <sing...@gmail.com>
Date: 10 November 2011 at 19:48
Subject: [efloraofindia:93522] Fabaceae-Faboideae (Papilionaceae) Week: Lespedeza sp. from Chakrata Tiger fall area
To: efloraofindia <indian...@googlegroups.com>

--

With regards,
J.M.Garg

'Creating awareness of Indian Flora & Fauna'

Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia. 

For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group (largest in the world- more than 2500 members & 2,25,000 messages on 18.6.15) or Efloraofindia website (with a species database of more than 11,000 species & 2,00,000 images).

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

[Vijayasankar Raman]

This should be either Indigofera trifoliata or I. trita, not I. glandulosa.

--

Vijayasankar

------------------------------------------

Vijayasankar Raman

Research Scientist

National Center for Natural Products Research

University of Mississippi, USA

[J.M. Garg]

Thanks, Vijayasankar ji,

Appears like Indigofera trifoliata as per A revision of trifoliolate Indigofera (Tribe Indigofereae: Fabaceae) in India - Vibha Chauhan, Arun Pandey - Phytotaxa  Vol 220, No 1 (2015)- a copy of which I have marked to you separately in Dec.'15.

If anyone still want it I can send it to him again.

---------- Forwarded message ----------

[Vijayasankar Raman]

Thanks Garg ji, for the ID validation and the paper.