Tamenglong District is blessed with virgin forests, exotic orchids, rare and endangered plants, and wildlife. The forests can be grouped as Tropical-Ever-green forest, Sub-tropical forest and Bamboo brakes.
The luxuriant and varied vegetation in Tamenglong District is due to those factors.Zousiang (uningthou) , ndung (Sahikuhi), mphou (oak), nthaeng (tairen),chongrei (talhao), makou, junh, gaeng (uwah), gaengthing ( semi Uwah), n-ngaih, agau and Aguretc are found. Varieties of cane and bamboo, thatch grass are also abundance. Cinnamon is also found. Others eatable fruits and citrus are wild apple, wild banana, wild cherry, wild walnut, wild mangoes, luikhumthai, Lichi, Passion fruit, neithai, Lemon, Orange and Tachuthai. Medicinal plants are also abound. Mushroom and Morels are found in abundance in the jungle.
The forests are rich in wild-life:
Mammals:- Mole, hedgehogs, flying lemur, bats ,monkeys, black monkey, wild pigs, wild boars, pangolin etc. are some of the mammalian fauna found in Tamenglong.
Tamenglong is called as the land of the Hornbill. The great pied Hornbill (Bucerosbiconishomrai), Hiu big and swan Hornbill (Hornbill) and Indian pied Hornbill ( Anthracoceros Malabasicusmalabasicus) species are found.
The zeliangrong society is an exogamous and patrilineal society. It is divided into 6 (six) major clan mainly Kamei (pamei), Gonmei (Newmai) Gangmei ,Panmei, Riamei and Ruangmei. The marriage within the clan is strictly prohibited and each clan has also a Totem. Ahuina (Green pigeon)is a Totem for Kamei (Pamei), ndaorui (bulbul) is a Totem (bird) for Gonmei (Niumei), Kamang (Tiger) is a Totem ( animal) for Gangmei clan, Gou (Frog) is a Totem for Riamei clan and Ruaingouna (bird) is a Totem for Panmei clan and Agaek (Crow) is a totem for Ruangmei clan.