Fraser's St. John's wort

Triadenum fraseri

''Triadenum fraseri'', known by the common names of bog St. John's wort, Fraser's St. John's wort, or Fraser's marsh St. John's wort, is a perennial flowering plant in the family ''Clusiaceae'' that appears natively in New England, northeastern and north Central United States and lower Canada in wetlands habitats of "bogs, marshes, swales, sedgy meadows, moist sandy shores, conifer swamps and alder thickets". The species common name is named after John Fraser , a Scottish botanist and widely travelled plant collector.
Fraser's Marsh St. Johnswort It is not common to find the Fraser's Marsh St. Johnswort (Triadenum fraseri) in flower but here at a beaver pond it was in bloom at Alleyn-et-Cawood, Quebec, Canada. Alleyn-et-Cawood,Canada,Fraser's Marsh St. Johnswort,Geotagged,Quebec,Summer,Triadenum fraseri

Appearance

''Triadenum fraseri'' is a perennial forb can grow to heights of 1 foot to 2 feet . The plant has blue-green stalkless, elliptical, opposite leaves that are typically 2.5 inches long and to 1.75 inches wide, with prominent, often red stems and veins.

The plant displays clusters of a few to several flowers arising from leaf axils, at the end of branching stems. The pink five-petal flowers with green or purplish sepals that range from 0.25 inches to 0.75 inches wide when fully open . The flower typically appears closed like a bud. Each flower features 9 to 12 yellow stamens. The plant's fruit is a three-sectioned dark-red or orange pointed capsule, 0.25 inches to 0.5 inches long. ''Triadenum fraseri'' is typically in flower each year from July through September.

The plant is autotrophic and employs C3 carbon fixation. The C3 plants originated during Mesozoic and Paleozoic eras and tend to thrive in areas where sunlight intensity is moderate, temperatures are moderate, and ground water is plentiful. C3 plants lose 97% of the water taken up through their roots to transpiration.

Distribution

''Triadenum fraseri'' thrives in wetlands habitats of "bogs, marshes, swales, sedgy meadows, moist sandy shores, conifer swamps and alder thickets".

The United States Department of Agriculture describes ''Triadenum fraseri'' as a native species within the states of Connecticut, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, Nebraska , New Hampshire, New Jersey , New York, North Carolina , Ohio, Pennsylvania, Rhode Island, Tennessee , Vermont, Virginia , Washington, West Virginia, and Wisconsin, in the United States; and in the provinces of British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec, Newfoundland, Prince Edward Island, Saskatchewan , in Canada; and in the French overseas territories of Saint Pierre and Miquelon. It is categorized as an "obligate wetland" plant by the U.S. Army Corps of Engineers for the Atlantic and Gulf Coastal Plain, Eastern Mountains and Piedmont, Great Plains, Midwest, Northcentral and Northeast; and Western Mountains, Valleys, and Coast regions.

Habitat

''Triadenum fraseri'' thrives in wetlands habitats of "bogs, marshes, swales, sedgy meadows, moist sandy shores, conifer swamps and alder thickets".

The United States Department of Agriculture describes ''Triadenum fraseri'' as a native species within the states of Connecticut, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, Nebraska , New Hampshire, New Jersey , New York, North Carolina , Ohio, Pennsylvania, Rhode Island, Tennessee , Vermont, Virginia , Washington, West Virginia, and Wisconsin, in the United States; and in the provinces of British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec, Newfoundland, Prince Edward Island, Saskatchewan , in Canada; and in the French overseas territories of Saint Pierre and Miquelon. It is categorized as an "obligate wetland" plant by the U.S. Army Corps of Engineers for the Atlantic and Gulf Coastal Plain, Eastern Mountains and Piedmont, Great Plains, Midwest, Northcentral and Northeast; and Western Mountains, Valleys, and Coast regions.

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Status: Unknown
EX EW CR EN VU NT LC
Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderMalpighiales
FamilyHypericaceae
GenusTriadenum
SpeciesFraseri
Photographed in
Canada