| solidago houghtonii | | canada: ontario, whitefish river first nation, s of birch island | | 1331394659 |
| solidago houghtonii | | canada: ontario, bruce county, north bruce peninsula township, cabot head alvar | | 1328822500 |
| solidago houghtonii | | canada: ontario, bruce co., lindsay tp, cabot head ansi (lindsay twp portion), g.bay shore, niagara escarp. slope+plain, incl. 4 major promontories, ca. 27km ese of tobermory. | | 1331393448 |
| solidago houghtonii | | Canada: Ontario, Bruce County, North Bruce Peninsula Township, Cabot Head Alvar | | 1316024660 |
| solidago houghtonii | | Canada: Ontario, Whitefish River First Nation, S of Birch Island | | 1316024590 |
| solidago houghtonii | | Canada: Ontario, Bruce Co., Lindsay Tp, Cabot Head ANSI (Lindsay Twp portion), G.Bay shore, Niagara Escarp. Slope+plain, incl. 4 major promontories, ca. 27km ESE of Tobermory. | | 1316021566 |