Common Name:
MARSH ST. JOHN'S-WORT
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Coefficient of Conservatism:
10
Coefficient of Wetness:
-5
Wetness Index:
OBL
Physiognomy:
Nt P-Forb
R. Schipper
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.