Coefficient of Conservatism:
Coefficient of Wetness:
MARSH ST. JOHN'S-WORT
Sphagnum bogs, lake shores, old interdunal swales, wet meadows. A species of Coastal Plain affinity, disjunct to southern Michigan, northwestern Indiana, central Wisconsin, and other areas known for such plants.
The sepals are narrowly oblong to lanceolate, tapering to a more acute apex compared to the more elliptic, rounded sepals typical of T. fraseri. Plants intermediate between the two species are occasionally found.