The sanctuary has dense forests with three major sections, Vasota, Maharkhor and Indavli Met, and is endowed with natural protective boundaries, with Shivsagar Lake on one side, and the slopes of the Western Ghats on both sides. These geographic barriers have enabled the emergence of a wide variety of flora and fauna and high biodiversity in the sanctuary. Due to the wide range of elevations in the sanctuary, the ecoregions in the sanctuary include North Western Ghats montane rain forests above and North Western Ghats moist deciduous forests below. Dominant species are anjani, jambul, hirda, awala, pisa, ain, kinjal, amba, kumbha, bhoma, chandala, katak, nana, umbar, jambha, gela and bibba. Karvi is found almost all over the area. Climbers such as shikekai, garambi are common. Some of the threatened species of trees found in the sanctuary are dhup (Indian frankincense), longan, and Elaeocarpus spp. Shrubs and medicinal plants such as karvand, agati, ranmiri, tamalpati, toran, dhayati, kadipatta, narkya and murudsheng, along with a small quantity of bamboo are also found. A large number of ephemeral bulbs of seasonal plants are found.