Hypericum boreale (Britton) E.P. Bicknell
northern bog St. John's-wort (northern St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
northern bog St. John's-wort (northern St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
Photograph
Species Information
General:
Perennial herb from a fibrous root; stems erect, much branched above, glabrous, 10-40 cm tall.
Leaves:
Stem leaves elliptic to oval, unstalked, obtuse, glabrous, 1-2 cm long, 0.5-1.0 cm wide.
Flowers:
Inflorescence 20-150+ flowered; petals orange-yellow, 2-4 mm long; sepals 3-5 mm long; stamens less than 20; styles 3.
Fruits:
Membranous capsules, 4-5 mm long; seeds yellow-brown, about 0.5 mm long, transversely wrinkled and longitudinally finely-lined.
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
USDA Species Characteristics
Flower Colour:
Yellow
Blooming Period:
Early Summer
Fruit/Seed characteristics:
Colour: Brown
Present from Summer to Fall
Source: The USDA
Habitat and Range
Wet to moist ditches, disturbed areas, field and river banks in the lowland zone; infrequent in SW BC, known only from the lower Fraser Valley; introduced from E. North America.Status Information
Synonyms
Synonyms and Alternate Names:
Hypericum mutilum subsp. boreale (Britt.) J. Gillett