"Angiosperm" flora currently identified here include 966 species belonging to 134 families and 599 genera. There are 701 "Dicotyledons" distributed among 113 families and 420 genera. There are 265 "Monocotyledons" here distributed among 21 families and 139 genera. Families best represented are the "Orchids" with 108 species including the rare, endemic and highly endangered orchids Ipsea malabarica, Bulbophyllum silentvalliensis and Eria tiagii, "Grasses" (56), "Legumes" (55), "Rubiaceae" (49) and "Asters" (45). There are many rare, endemic and economically valuable species, such as cardamom "Ellettaria cardamomum", black pepper "Piper nigrum", yams "Dioscorea spp.", beans "Phaseolus sp.", a pest-resistant strain of rice "Oryza Pittambi", and 110 plant species of importance in Ayurvedic medicine. Seven new plant species have been recorded from Silent Valley, including in 1996, "Impatiens sivarajanii", a new species of "Balsaminaceae".