Usually in partial to full shade in deciduous, coniferous or mixed woods, particularly in woods dominated by Red Oak. Often found in humus-rich soil overlying sand, especially on or beside portages and other old wood's trails or roads. Most common in mesic sites, but occasionally occurs in wet-mesic sites in swamps. Has a tendency to form patches measuring up to 1 metre or more in diameter and containing hundreds of plants. In one such colony, several dozen Green Adder's-mouth were scattered among the plants of Downy Rattlesnake-plantain (Whiting, 1970). Usually blooms in mid to late August. Uncommon in Muskoka.
( TRT CAN TRTE )
Townships: Morrison Freeman
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Last revision: 7/10/96
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