Triadenum fraseri (Spach) Gleason
Fraser's St. John's-wort (Fraser's marsh St. Johnswort)
Hypericaceae (Mangosteen family)
(Previously in Clusiaceae)
Introduction to Vascular Plants
Fraser's St. John's-wort (Fraser's marsh St. Johnswort)
Hypericaceae (Mangosteen family)
(Previously in Clusiaceae)
Introduction to Vascular Plants
Photograph
Species Information
General:
Perennial herb from a taproot; stems erect, few branched, glabrous, 30-60 cm tall.
Leaves:
Stem leaves oblong to oblong egg-shaped, unstalked, heart-shaped at the base with rounded or notched tips, 3-6 cm long, 2-3 cm wide, glabrous with translucent glands below.
Flowers:
Inflorescence up to 5- to 50-flowered; petals purplish or flesh-coloured, 5-8 mm long; sepals elliptic or oblong, obtuse, 3-5 mm long; stamens in 3 groups of 3 alternating with 3 large, orange glands.
Fruits:
Membranous capsules, 7-12 mm long; seeds dark purplish, about 1 mm long, finely corrugated and pimply in lines.
Illustration
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Habitat and Range
Wet bogs, marshes and shorelines in the lowland zone; rare in SW BC, known only from the lower Fraser Valley; introduced from E North America.Status Information
Synonyms
Synonyms and Alternate Names:
Elodea fraseri Spach.
Hypericum virginicum var. fraseri (Spach) Fern.
Triadenum virginicum subsp. fraseri (Spach) J. Gillett
Triadenum virginicum var. fraseri (Spach) Cooperrider