Marsh Fleabane (Pluchea odorata) January 30, 2019 640 × 427 NY Wildflowers Gallery Marsh Fleabane (Pluchea odorata). Asteraceae family. Napeague, Sept 2017. Native. Also known as Sweet-scented Camphorweed. Salt and fresh tidal marshes throughout Long Island and Lower Hudson River. Long Island, September 2017.