Apios americana Medik. GROUNDNUT, AMERICAN POTATO-BEAN, HOG PEANUT. (As A. tuberosa,) "doubtless near the Falls, but not yet observed by us," Day (1888). Ontario, Queen Victoria Park (as Apios tuberosa Moench.), "on the cliff near Table-rock house, and also on the bank a little south of the old museum," Panton (1890). Ontario, Niagara Park System (as A. tuberosa), Cameron (1895). Ontario: Queenston, Wm. Scott, Sept. 7, 1898 (12.254); Niagara Falls, H. Troohy, Aug. 25, 1900, Queens, Heimburger (1955). (As A. tuberosa) "... grows at Dufferin Islands," Hamilton (1943).

New York: Buckhorn Island, north end of Grand Island. Side of shaded path, Oak-Hickory NW woods, + Menispermum canadense, Anemone canadensis, Amphicarpaea bracteata, Eckel, June 14, 1998 (BUF). Ontario: Navy Island, dry area above western marsh, N end, Eckel, July 15, 1998 (BUF).