Municipalité de Rock Forest, canton d'Ascot, cté de Sherbrooke. Chemin Ste-Catherine. En bordure d'un champ de maïs. Terrain sablonneux. Près du collège Mont Ste-Anne.
Farran Point, Stormont County. A solid patch 10 feet long by 2 feet wide along railroad 1/4 mile west of station; only known occurence in eastern Ontario, undoubtely an introduction.