Collinsonia canadensis Common Names horse-balm, Canada horse-balm, richweed, stoneroot Family Lamiaceae Habitat rich woodlands Observed Blooming mid October, 2016 (!) late August, 2015 early August to early September, 2014 Conservation endangered in Wisconsin Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to email a link to a friend (Opens in new window) Email Like Loading...