http://www.sustainablefingerlakes.org/map/listing/finger-lakes-native-plant-society
Finger Lakes Native Plant Society is an Ithaca-based organization dedicated to promoting the appreciation of the region's native flora. They hold free public field trips throughout the year and free indoor programs during the colder months. Members receive a newsletter and participate in a seed exchange, a spring native plant sale, and a December celebration of native plants.
532 Cayuga Heights Road, Ithaca
http://flnps.org/