Flora of Chakrata 2012: Rhus punjabensis for validation

[Nidhan Singh]

Dear all,

This medium-sized tree was shot from "Chakrata-Tiuni Motor Marg" in May 2012, I hope this is Rhus punjabensis...hope to get validation/correction...

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Regards,

Dr. Nidhan Singh
Department of Botany
I.B. (PG) College
Panipat-132103 Haryana
Ph.: 09416371227

[jmgarg1]

Forwarding again for Id confirmation or otherwise please.

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[jmgarg1]

A reply from Anil Rajbhar ji:

"Its probably spondias species of Anacardiaceae ...."

[Vijayasankar]

Nidhan ji, I think you are right. The key in FoP leads to Rhus punjabensis.
Stamens 8-10 in Spondias, whereas 5 in Rhus. Pictures of fruits may help to confirm the id.
Here are my pictures of R. punjabensis (I hope it is!) from Shimla, but in fruiting stage.

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

[Nidhan Singh]

Thanks a lot Vijayasankar Ji,

The tree was nowhere in fruiting stage in the area... yes, your plant resembles mine.. pleased to see the fruit pics..will see if there are more inputs...

[ushadi Micromini]

Vijaya ...your pictures remind me of the poison sumak...very pretty in the late summer to fall, the small red berries are "famine foods" for birds in snowy winter...

Nidhan... I 'll await your berry pictures...  BUT ....

 next time
please, 
dont tear/break branches// leaves and hold in your hands... all rhus plants have the resin that sticks tenaciously to skin and causes contact dermatitis in people upon re-exposure... many people ..not a few ... develop the allergy..and dermatitis and even oozing blisters...

READ the warning Wisconsin state gov forestry site tells us ...  look at the last para called the note at http://dnr.wi.gov/forestry/TreeID/TreePgs/toxicodendronvernix.htm
  .that page even has a beautiful bw line drawing..
enjoy  and be careful.
Usha di
==

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Usha di
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[Nidhan Singh]

Thanks a lot Ushadi Ji for this important information...and careful concerns...this has become a usual practice for us to pluck the branches for taking close up pics, for trees this becomes much of a necessity...and we almost always ignore the probable after effects, due to lack of knowledge....next time i will take care not to come in contact with the resin...specially from this genus..thanks again..

[jmgarg1]

A reply:

"Looks Rhus punjabnesis me too.
                        Krishan lal"

 

Thanks, Kishan Lal ji for all the feedback.

On 28 July 2012 13:33, jmgarg1 <jmg...@gmail.com> wrote:

[Alok Mahendroo]

Thanks Usha di for that bit of knowledge...
regards
Alok

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[Vijayasankar]

Yes Usha di, I agree with you.
We used to be always cautious when dealing with Anacardiaceae members. Several of the genera that I know, incl. Holigarna, Semecarpus, Rhus, Toxicodendron, of this family are skin-irritants, some of them causing very serious conditions. Rigorous research is on in USA to formulate an effective antidote for Poison Ivy/Poison Sumac that is very common in N.America. Interestingly some Americans have resistance against Urushiol but most of the Asians are said to be susceptible to this!

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

[Nidhan Singh]

Thanks everyone for inputs...I also remember one of our favourite and
"soft-hearted" plant Mango causes serious burns if you happen to come
in contact with the sap exuding from fruit stalk. I had to face
serious skin troubles when for the first time I plucked unripe fruits
from a mango tree. After that I came to know, that I have to be
cautious next time...thanks again..

[ushadi Micromini]

Yes, Nidhan ... mango , cashews even strawberries... picking is a dangerous onerous job... have to be careful...  and PAY extra monies to the laborers who do the job for us...

usha di

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Usha di
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[Pankaj Kumar]

Try eating an unripe grape. It will feel like some one slit your
throat from inside :).. I had a very bad experience once.
Pankaj

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[ashutoshsharma11sn]

Dear members,

This is Toxicodendron wallichii (Hook.f.) Kuntze (Synonym - Rhus wallichii Hook.f.).

Please check the below link for details

https://groups.google.com/g/indiantreepix/c/uOmfsazdM4E 

Thanks & regards

Ashutosh Sharma

[Gurcharan Singh]

Thanks Ashutosh ji, less than 5 pairs of entire leaflets is convincing.