Jatropha maheshwarii Subram. & Nayar, Bull. Bot. Surv. India 6: 331 1965. ;

Image by Padmanabha Iyer & S.Kasim (Both identified by Dr. N. P. Balkrishnan), (Inserted by Bhagyashri Ranade & J.M.Garg)


Identification of Plant specimen- Euphorbiaceae : 12 posts by 6 authors. Attachments (2)

Pl help me to identify the attached specimen.
The leaf stalk joins at half-middle of the leaf.
The fruit is like that of Jatropha sp.
I could not get the fully opened flower.

I have forgotten to furnish the location details.
The specimen was recorded at Radhapuram, Tirunelveli Dist, Tamilnadu on 18-01-15

looks like Jatropha sp.   

Jatropha species in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available on net) 

This appears to be Jatropha maheshwarii Subr. & M.P. Nayar, common in coastal districts of Tamil Nadu, usually found in sandy soil. Please check with Flora of India vol 23: 253.

I am having the specimens of Jatropha maheshwarii, which is different from the posted one (leaf shape and joining of leaf stalk in the leaf blade). I will post them separately.

Most welcome.

As per advice of …, I have compared the images with the treatment of Flora of India volume 23 and it is indeed leading on to J. maheshwarii.  In any case, if you have specimens different from J. maheshwarii, please show us.

Pl find attached the specimen of Jatropha maheshwarii for further clarifications.
Attachments (2)

I hope the attached 2 specimens were Jatropha maheshwarii, which were collected near the original post for which ID was requested.
I hope that lot of variation in leaf shape and size is observed in Jatropha maheshwarii.
If it is so, we can consider the original post as Jatropha maheshwarii as suggested earlier

This is very interesting. While it agrees with the salient features of J. maheshwarii, there are significant differences like lobation of leaves and non-peltate or slightly peltate leaf-bases.
This needs to be studied in detail in its entire range natural habitats. Perhaps, J. maheshwarii shows much variation in the leaf morphology, as seen in J. nana.
I cannot give a definite opinion.
The plants shown in the earlier message is the typical J. maheshwarii, which was published  in Bull. Bot. Surv. India 6: 331, ff. 1 – 8. 1964. In fact, I prepared the illustration for the authors in the protologue, when I was working at BSI,Southern Circle. I still remember the plant.
The plant needs further detailed studies.

It may be a new species but it will be risky to describe it before studying all angles as there is frequent hybridization amongst the species of Jatropha.

Fwd: [efloraofindia:238401] Euphorbia for id PI 270116- 1 : 3 posts by 2 authors. Attachments (2)
I am attaching two images with this mail, wondering whether they belong to family Euphorbiaceae.In both cases i was so concentrating on the insects on the plants and so the images are not sharp. Apologies.
I would understand totally, if they are not identifiable due to only few features being clear.
Here they are.


J. maheshwarii Subr. & M.P.Nayar as per another thread as identified by Dr. N P Balakrishnan.

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