Dendrocnide sinuata

Dendrocnide sinuata (Blume) Chew, Gard. Bull. Singapore 21: 206 1965. (Syn: Dendrocnide crenulata Miq.; Dendrocnide microstigma (Gaud. ex Wedd.) Chew; Dendrocnide nervosa (H. Winkl.) Chew; Dendrocnide nitida (H. Winkl.) Chew; Dendrocnide pulus (Steud.) Chew; Laportea crenulata Gaudich.; Laportea gigantea Gaud.; Laportea integrifolia C.Y. Wu; Laportea microstigma Gaud. ex Wedd.; Laportea sinuata (Blume) Miq.; Urera commersoniana Wedd.; Urera crenulata Wedd. (ambiguous synonym); Urera gigantea Gaud.; Urera javaenensis Gaud.; Urera microstigma Wedd.; Urera stimulans Wedd. (ambiguous synonym); Urtica ardens Bl. (ambiguous synonym); Urtica churta Buch.-Ham. ex Wall.; Urtica crenulata Roxb. (ambiguous synonym); Urtica gigantea Poir.; Urtica javaensis Poir. ex Gaud.; Urtica obnoxia Hassk.; Urtica pulus Steud.; Urtica sinuata Blume; Urticastrum crenulatum (Roxb.) Lyons; Urticastrum microstigma (Wedd.) Kuntze);

Common name: Stinging Tree, Devil Nettle, Mousa Nettle, Elephant Fever Nettle, Mouse Nettle • Assamese: Sirnat, Sorat • Bengali: Chorpata • Hindi: Morange, Utigun • Kannada: Malai Murugan • Malayalam: Kattanplavu, Aanayaviratti, Aanavannangi • Nepali: Moringe • Tamil: ஆனைச்சொரியன் Anaichorian, Otta-pilavu

Dendrocnide sinuata
(meaning "tree nettle" with "wavy leaf margin" in Greek) is a poisonous plant called pulutus',[1] pulus,[1] stinging tree,[1] fever nettle,[citation needed] or elephant nettle,[2] growing in subtropical wet evergreen forests throughout Asia.[3] Some of its uses in herbal medicine have been scientifically validated.[4]
This species is well known in many languages throughout Asia, including;
  • Assamese: Sirnat, Sorat; Bengali: Chorpata; Lepcha: Mealumma, Ongyalop, Sunkroug; Nepali: Moringe;[4]
  • Tamil: Anachoriya, Anaimeratti (‘that which threatens elephants'), Ottarbala, Otta-pilavu' (ஓட்டா-பில்வு), Anaichorian (ஆனைச்சொரியன்);
  • Malayalam: Anamayakki (ആനമയക്കി), Aanavanangi (ആനവണങ്ങി), Aanayaviratti (ആനയെവിരട്ടി), Anachoriyanam (ആനച്ചൊറിയണം), Kattanplavu (കട്ടൻപ്ലാവ്);
  • Kannada: Malai Murugan.;[5] Hindi: Morange, Utigun;
  • Chinese: Quan Yuan Huo Ma Shu and Thai: Kalangtang Chang .[6]
This nettle grows along streams and among understorey trees in wet evergreen forests between 300 metres (980 ft) – 850 metres (2,790 ft) but up to 1,200 metres (3,900 ft) elevation. It is found in the forests of the Western Ghats of South India, Sri Lanka, Bihar, Northeast India and onwards into Burma. Bhutan. Sikkim, Thailand, Malaysia and (S Guangdong, SW Guangxi, Hainan, S Xizang and SW Yunnan provinces of China)[3]

This nettle is a major shrub species in the tropical evergreen forests of the lower reaches of Khasi Hills and Garo hills of Meghalaya, India, up to 1,200 metres (3,900 ft).[7] There is a camp named 'Sessni' in Eaglenest Wildlife Sanctuary in the Himalayan foothills of West Kameng District in Arunachal Pradesh, India, which in the Nishi peoples language means Nettle. The place is filled with nettle on either side of the road.[8]

The plants are large shrubs or small trees up to 5 metres (16 ft) tall.
bark is white and smooth with lenticellate blaze.
branchlets are terete (cylindrical and circular in cross section) with glandular stinging hairs.
Leaves are simple, alternate, spiral, with stipule caducous (falling off prematurely or easily) and leaving scar
Petiole is 2–6 centimetres (0.79–2.36 in) long, terete, with glandular stinging hairs.
Lamina parts of the leaves are 9.5–34 centimetres (3.7–13.4 in) x 2–11.5 centimetres (0.79–4.53 in), narrow oblanceolate to elliptic, apex acuminate, base attenuate-cuneate to obtuse, margin subentire or crenulate, coriaceous, with glandular stinging hairs; midrib raised above; secondary_nerves 8-11 pairs; tertiary nerves distantly obliquely percurrent.
Flowers with inflorescence axillary panicles, drooping, to 20 centimetres (7.9 in) long. Flowers are unisexual, subsessile.
Fruit and seed are achenes.[5]
Upon contact with skin the nettle causes a painful itch, hives, fever and chills, skin depressions and clamminess which can recur over 10 days to six months. About 1820, Jean Baptiste Louis Claude Theodore Leschenault de la Tour, the French botanist, described the pain caused by the nettle to be like "rubbing my fingers with hot iron". Jean Baptiste also suffered jaw muscle contractions so severe that he feared he had tetanus.[2]
It's not sure what toxin in the plant causes such severe reactions but formic acid, serotonin, histamine, oxalic acid and tartaric acid are some of the suspects. When the antidote lime juice or turmeric is smeared on the affected areas apparently the symptoms immediately subside.[2]
The juice of the root is reported to be used in chronic fevers. The roots are also boiled in water and the decoction is given to cure jaundice. The roots and leaves are used to prepare poultice and applied to heal boils, carbuncles, wounds, burns and rashes. The root extract has strong antibacterial activity against both Gram (+) and Gram (-) bacteria due to presence of 2a, 3, 21, 24, 28-pentahydroxy-olean-12-enes.[4]
Dendrocnide sinuata has been used as medicine for curing diverse ailments including fever, chronic fever, malaria, dysentery, urinary disorder, Irregular menstruation, swelling, blindabscesses and hypersensitivity by most ethnic tribal communities of North East India including the Nishi, Apatani, Adibasi, Karbis. Dimasa, Khasi and Riang.[9]
The stem-bark yields a strong cordage fibre. The fiber is also used to make coarse cloth. The flowers are reported to be used in curries in North Lakhimpur, Assam. The seeds are chewed to freshen breath.[4]
(from Wikipedia on 3.6.16)
Plant ID Please : 6 posts by 4 authors. Attachments (1)
Please help me to find the ID of the attched pic of the plant. This plant found in western ghats if scraped throughout is believed to get you a fever with boiling temperature that stays for a week. no medicine can bring it down...
Details please
I think this is Laportea crenulata. Family Urticaceae. It is known as Elephant Nettle. Anaveratti in Malayalam meaning it can frighthen elephants! The sting is indeed very painful. I have had firsthand experience!!
It is not Laportea 
Let us wait for further details
Do you have any more pictures & details etc. ?
Sorry Sir, This is the only pic I have
Laportea crenulata as per ...
Yes it is Laportea crenulata (now it is Dendrocnide sinuata (Blume) Chew) which, if you happen to touch, gives irritation and  high fever. while moving in forest, we have to be careful about it. It is known as 'Ankara' in northern Kerala, which indicate it is a disturbing one. In other place in Kerala it is known as Anaveratti means it deter elephants. But what we saw in reality that elephants remove its bark and eat it.
Dendrocnide sinuata (Blume) Chew from Assam KD 01 2016 : 2 posts by 2 authors. Attachments (6)
Attached images are Dendrocnide sinuata (Blume) Chew  
Date : 06.11.2015
Location: Assam
Family : Urticaceae
Genus & species : Dendrocnide sinuata (Blume) Chew
Habitat: Grows wild on road side
Habit : Shrub
ID Request- herb from Cherapunjee-PKA3 : 9 posts by 3 authors. Attachments (5)
Requesting ID of this tall herb from Cherapunjee forest. Locals told me that this plant causes severe itching..
Dendrocnide sinuata  ?? 

Any other sp. found in Meghalaya ?

Please check Dendrocnide crenulata.
This does look like D. sinuata to me. Maybe there is local variation..

Resembles Urticaceae member, Could be Boehmeria,
Never seen such tree looing Bohmeria !
Is it Dendrocnide sinuata ?

Yes it might be …
Your plant resembles the pictures in the link: