Tribulus terrestris :: Puducherry :: 15 OCT 19

[Dinesh Valke]

Puducherry  near sea coast Date: October 15, 2019 ... Altitude range: about 0 - 3 m (0 - 10 feet) asl

Tribulus terrestris  L.

Regards. Dinesh

[ushadi]

i see this in american southwest hiking trails also

and in my potted plants i buy near ganges , too

your pictures are very nice

Regards

Ushadi

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[Saroj Kasaju]

Very nice post.

Thank you Dinesh ji !

Saroj Kasaju

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Thank you.

Saroj Kasaju

[Dinesh Valke]

Thank you very much Usha di and Saroj ji.

Regards.

Dinesh

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[J.M. Garg]

May be Tribulus lanuginosus as per keys and details at Tribulus complex

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With regards,
J.M.Garg

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[Dinesh Valke]

Hi Garg ji,

At GBIF, I had gone through various pages, and concluded as follows:

Tribulus terrestris L. ... synonyms, sub-species, varieties at GBIF

Tribulus lanuginosus L. ... synonym of variety Tribulus terrestris var. bicornutus (Fisch. & C.A.Mey.) Hadidi ... status at GBIF

It was too confusing for me to dig into varieties of Tribulus terrestris.

Let me know whether you think posted plant has to be labelled explicitly as Tribulus lanuginosus L.

Regards.

Dinesh

[J.M. Garg]

Yes, Dinesh ji.

Among all the varieties given in Catalogue of Life, only Tribulus terrestris var. bicornutus (Fisch. & C.A.Mey.) Hadidi is reported from India, as per distribution given at the links.

So we may take this one only.

[Dinesh Valke]

Hi Garg ji,

I went through links ... that you mentioned in your line ... "only Tribulus terrestris var. bicornutus (Fisch. & C.A.Mey.) Hadidi is reported from India, as per distribution given at the links."

It can be seen as follows:

Tribulus terrestris L.  India (widespread)

Tribulus terrestris var. bicornutus (Fisch. & C. A. Mey.) Hadidi  India (widespread)

Tribulus terrestris var. rajasthanensis (Bhandari & V. S. Sharma) F. Al-Hemaid & Jacob Thomas  India (Rajasthan, Gujarat)

As per keys and details at Tribulus complex that you suggested in earlier post in this thread, Vijayasankar ji's poster shows fruits of three species.

In that, I see fruits of my posted plant is much closer to the parent species: Tribulus terrestris than that of Tribulus lanuginosus

What are your thoughts?

Regards.

Dinesh

[ushadi]

 

Tribulus complex This image from my ppt slide has pictures of 3 species of Tribulus. They are distinct in general morphology, style, fruits, thorns, indumentum, leaves etc. as you can see in the pictures. Reproducing the key here:   A simple macroscopic key to distinguish the 3 southern indian species :   1. Style absent or very short (< 0.5 mm long) --- Tribulus terrestris 1. Style present, 1.5-2 mm long ---------------------- 2 2. Style glabrous ------------------------------------------- Tribulus lanuginosus 2. Style pubescent ---------------------------------------- Tribulus subramanyamii   Hope this gives some clarity oin id of these 3 spp.   Look forward to your comments/observations. With regards R. Vijayasankar  6/8/10

Regards

Ushadi

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[ushadi]

Vijayashankar

my feedback after 9 years , better late etc etc.... as the saying goes..

thanks

I revisited my own pictures from 2010 when Gokhuru plant had come in as an extra bonus (weed?)

in one of the plants pot, from a nursery from the banks of river Hooghly.

following this key

it is Tribulus terrestris

i have superrimposed Vijayashankar's key on his poster to keep it handy

i share it here

Regards

Ushadi

[J.M. Garg]

To me fruits are not visible in your images. Otherwise also,we have to rely more on the key based of Style.

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[Dinesh Valke]

Apologies Garg ji, I thought I had seen fruits of this plant, but they were of Pedalium murex. I think I am working very very hard :)

I am attaching original photo (of what we see in this post).

Since the capacity of attachment is 8MB, I am attaching only one photo here.

Please check when time permits whether the length of style is negligible / appreciable.

Regards.

Dinesh

[Dinesh Valke]

Garg ji, here is another which is not uploaded to flickr because of very poor quality of the photo.

May be this will help in judging the length of style. I hope other aspects (stamens, anthers) help in gauging length of style.

I think the length of style is very minimal.

Regards.

Dinesh

[J.M. Garg]

I was judging based on composite image at at Tribulus complex

[Dinesh Valke]

Garg ji, I sent two original images for your perusal for showing length of style compared to surrounding petals, filaments, anthers.

The length of style is negligible (less than 0.5mm). The flower is as much as 10mm across, filament about 5 - 6 mm long.

I would consider this plant to be Tribulus terrestris.

Regards.

Dinesh

[J.M. Garg]

If we go by Vijayasankar ji's images, I think differently. 

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With regards,
J. M. Garg

[ushadi]

why Gargji

it matches  Vijay's classification

small flowers

very small //short style

Regards

Ushadi

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[Dinesh Valke]

Dear Vijayasankar ji,

Please share your thoughts regarding posted plant's ID.

Regards.

Dinesh

[Vijayasankar Raman]

Hi Dinesh ji,

Is it possible that the pictures in this thread were from two different locations/populations? I am inclined to think the first two pictures as Tribulus lanuginosus based on the longer and glabrous styles. The other pictures may be of T. terrestris as the styles appear to be shorter. The general morphology of the two plants look different, too. But, I could be wrong. 

Thanks,

Vijayasankar

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Vijayasankar

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Vijayasankar Raman

Research Scientist

National Center for Natural Products Research

University of Mississippi, USA

[Dinesh Valke]

You are absolutely right with your thought, Vijayasankar ji. They are from different locations within the premises of a resort.

Referring to my first post on Nov 25, 2019:

The first two photos (one of them is actually cropped version of another) belong to one location - clicked in the morning, and the rest were at another location - clicked in afternoon.

Later I added 2 photos on Dec 8, 2019, one each from the earlier locations.

The first one attached on Dec 8, belongs to morning location.

The second attached on Dec 8 belongs to afternoon.

So shall I conclude that your thoughts are as:

Morning location plant ... Tribulus lanuginosus L. ... synonym of Tribulus terrestris var. bicornutus (Fisch. & C.A.Mey.) Hadidi

Afternoon location plant ... Tribulus terrestris L.

Thank you very very much Vijayasankar ji, for your thoughts.

Garg ji, shall I label my photos at flickr accordingly, else please guide.

Regards.

Dinesh

[J.M. Garg]

I think Vijayasankar ji, is the expert in this matter and we have to follow his advice.

[Dinesh Valke]

Thank you very much, Garg ji.

Regards.

Dinesh

[ushadi]

Thanks, Vijayashankar

Regards

Ushadi

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