E-Flora BC: Electronic Atlas of the Flora of British Columbia

Hypericum majus (A. Gray) Britton
large Canadian St. John's-wort (large St. Johnswort)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #15846)

E-Flora BC Static Map
Distribution of Hypericum majus
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Perennial or sometimes annual herb from a fibrous root; stems erect, branched above, glabrous, 10-50 cm tall.
Stem leaves lanceolate to oblong, unstalked, obtuse to abruptly sharp-pointed, 5-7 nerved, 1-4 cm long, glabrous.
Inflorescence 5-50 flowered, erect; petals orange-yellow, 2-4 mm long; sepals lanceolate, abruptly sharp-pointed, 5-6.5 mm long; stamens less than 30; styles 3.
Membranous capsules, 5.5-7.5 mm long; seeds yellowish, 0.5 mm long, longitudinally grooved and finely transversely corrugate.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet waste places, vernal pools, gravelly shorelines and tidal shores in the lowland zone; rare in SW and SC BC; E to NF and S to DE, PA, NE, CO and WA.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References