I was talking to the knowledgeable Tamil Professor about the preservation of traditional knowledge of medicinal plants in south India in general and Tamil Nad in particular. One reason, he explains to me, is that temples have traditionally been the protectors and benefactors of trees in a locality. Every temple has a “Sthala Vriksham” or sacred plant for that temple. A recently published book (in Tamil) gives the local name, the botanical name, and the medicinal value, of nearly 60 temple plants in the state. For example, Patala – Stereospermum sauvealens, also known as Rose Flower Fragrant in English, Padari in Tamil and Podal, Parul, Padala… in various Indian languages is used to treat snake and scorpion bites and also neurological and hepatological conditions. Local names of other sacred plants are Poolai (Aerva Lenatea, or mountain knotgrass), Vanni (Prosopis spicigera, a plant of the pea family that is related to honey mesquite), Thillai (Excoecaria Agallocha, a mangrove species). Mangroves of Excoecaria Agallocha surround the ancient Thillai Chidambaram temple in Tamil Nadu.
As someone who is allergic to the shrill lessons preached by adherents of some religions, it is very refreshing, in this ecologically endangered world, to see the practical and common-sense benefits of devotion.