Botanical explorations conducted to the forest areas of Kerala, Tamil Nadu, Karnataka and Andhra Pradesh have resulted in the collection of 2373 accessions of 237 species from 32 forest explorations and 32 visits to secondary sources. They are being maintained in the green houses of Herb Garden, Arya Vaidya Sala, Kottakkal and the field gene bank of Ayurvedic medicinal plants.

Evergreen Forest   West Coast Semi Evergreen Forest   Moist Deciduous Forest
   
Silent Valley National Park- Palakkad District. Kerala
Kakkayam- Kozhikode District. Kerala
Ayyapankovil- Kollam District. Kerala
         
Dry Deciduous Scrub Jungle   Evergreen Forest   Evergreen Forest
   
Chinnar - Idukki District. Kerala
 
Nilakkal - Pathanamthitta District. Kerala
 
Kolli Hills - Salem District. Tamil Nadu
         
Semi Evergreen Forest
 
Mixed Moist Deciduous Forest
 
Dry Deciduous Scrub Jungle
   
Indira Gandhi Wild Life Sanctuary - Top Slip Pollachi, Tamilnadu
 
Mudumalai National Park - Nilgiri District, Tamilnadu
 
Thopur - Dharmapuri District. Tamilnadu
         
West Coast Semi Evergreen Forest
 
Dry Deciduous Scrub Jungle
 
Tropical Moist Deciduous Scrub Jungle
   
Charmady - Dakshin Kannad District. Karnataka
Sravandurga - Bangalore Rural District. Karnataka
Thirumal - Chinnar District, Andra Pradesh