Herbs, perennial;P. wangianus has a whorl of digitately compound leaf at the summit of aerial shoot; the leaf (prong) consists of three to eight palmately compound leaflets with a petiole, of which the terminal 3 to 5 leaflets are larger than the lateral 2 to 3 leaflets. The flowers were arranged in an umbel inflorescence on a long peduncle arising from the centre of the leaf attachment at the top of the aerial stem. The flowers were bisexual and pentamerous with an inferior ovary. The fruits were berry. The height of aerial shoot ranges from 30 cm to 112 cm depending upon the age of the plant. Similarly the aerial shoot diameter as well as rhizome diameter also varies from 0.3 cm to 1.5 cm and 0.5 cm to 3.5 cm respectively in different age classes. Each ovary consists of 3 carpels. In the age class of 35–50 years and above 50 years, the number of carpels varied from 3 to 5. Flowers with penta and tetra stigmatic condition have 5 and 4 carpels respectively. The terminal inflorescence matured first followed by axillary inflorescence. Young fruits were green in color which appeared in July and matured during October. As fruits mature, it became bright red on the bottom and black on the top. The color of pedicel also changed from green to crimson red. Fruits contained 1 to 5 seeds.

Frodin, D.G. & Govaerts, R. (2003 publ. 2004). World Checklist and Bibliography of Araliaceae: 1-444. The Board of Trustees of the Royal Botanic Gardens, Kew. N. Venugopal • Preeti Ahuja.Relationship between age, size, fecundity and climatic factors in Panax wangianus an endangered medicinal plant in the sacred grove forest of North-East India[J].Journal of Forestry Research.2011,22(3): 427−435.