Sikkim supports at least 4000 species of flowering plants. However, Rhododendron (36 Species/100 genera ) and Orchidaceae (more than 500 Species/100 genera in Sikkim, minimum 25 species threatened ),have attracted the most attention from naturalists, primarily because they produce attractive flowers in many colours and shapes. Sikkim supports 9 conifer species (rich by the standards of the HER) and 300 species of Pteridophytes (ferns and fern allies). Atleast 420 Medicinal plants species also occur in Sikkim.

 

 

 

Eriophyton wallichii and Rheum nobile, high altitude plant of Sikkim.