Sandplain Gerardia (Agalinis decemloba). Orobanchaceae. February 1, 2019 320 × 480 NY Wildflowers Gallery Previously Agalinis acuta. Rare endemic. ENDANGERED. Grasslands, barrens, sandy fields on Long Island. Hither Hills, 2007. Rare endemic. ENDANGERED. Grasslands, barrens, sandy fields on Long Island. Hither Hills, Long Island, 2007.