Zanthoxylum oxyphyllum Edgew., Trans. Linn. Soc. London 20(1): 42–43 1846. (Syn: Fagara oxyphylla (Edgew.) Engl.; Zanthoxylum alpinum C.C. Huang; Zanthoxylum taliense C.C. Huang; Zanthoxylum tibetanum C.C. Huang);
Nepal to China (W. Yunnan) and Myanmar: Assam, China South-Central, East Himalaya, Myanmar, Nepal, Tibet as per POWO;
India: Mostly in temperate forests at higher altitudes up to 2700 m; occasionally also found at lower elevations. Uttar Pradesh, W. Bengal, Sikkim, Manipur, Meghalaya and Arunachal Pradesh; Nepal and Bhutan as per BSI Flora of India;
SK 2421 31 January 2020 : 13 posts by 2 authors. 8 images- 5 to 7 mb each.
Location: Latha Bhanjyang
Date: 8 January 2020
Zanthoxylum oxyphyllum Edgew. ??
Yes, appears close to Zanthoxylum oxyphyllum as per image and references herein.
But Flora of China says leaves 11-19-foliolate, but I see only 9 leaflets.
As per keys in Flora of Bhutan at Zanthoxylum, it say 6 to 10 pairs of leaflets. but in the description it say 1 to 10 pairs (may be by mistake or printing mistake).
I also check other species as per these keys, but could t find match with any other species.
I think there may be 11 leaflets in some of the leaves.
I guess you are right …!
Shrub for ID fro Rudranaath Track, Chamoli, Uttarakhand : 4 posts by 3 authors. Attachments (1).
Can be Zanthoxylum sp. ..
Please check for Zanthoxylum oxyphyllum (Rutaceae).
Zanthoxylum is represented by following 4 species in Uttarakhand:
1) Z. acanthopodium which is an erect shrub or tree; petiole and rachis are always winged
2) Z. armatum which also have distinctly winged rachis and petioles.
3) Z. oxyphyllum with wingless petiole and rachis; climbing or scandant shrub, evergreen, flowers in dense umbellate terminal and axillary clusters.
4) Z. rhetsa which is a tree and found upto 600m altitude only.
Considering this the plant in discussion should be Z.oxyphyllum. If not then it is an addition to Flora of Uttarakhand. Flora of India vol-4 page376-391 has the details of all species of Zanthoxylum found in India.
If you have specimens check for revurved prickles on lower side of rachis. Leaflets are crenate to glandular serrate along margins as mentioned in Flora of India and Osmaston (1927).