Hypericum perforatum L. subsp. perforatum
common St. John's-wort
Clusiaceae
Introduction to Vascular Plants
common St. John's-wort
Clusiaceae
Introduction to Vascular Plants
Photograph
Map
Distribution of Hypericum perforatum subsp. perforatum
Click here to view the full interactive map and legend
Species Information
General:
Perennial herb from a rhizome; stems erect, much branched above, glabrous, 0.1-1.0 m tall.
Leaves:
Stem leaves lanceolate or oblanceolate, unstalked, obtuse, 1-3 cm long, 0.5-1.5 mm wide, glabrous with translucent glandular dots throughout and black marginal dots.
Flowers:
Inflorescence up to 100+ flowered; petals yellow, 8-10 mm long; sepals linear-lanceolate to lanceolate, abruptly sharp-pointed, 4-6 mm long; stamens 75-100, united basally into 3 groups; styles 3.
Fruits:
Membranous capsules, 5-8 mm long; seeds dark brownish, 1.0-1.3 mm long, pitted in longitudinal rows.
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
Ecology
Ecological Framework for Hypericum perforatum ssp. perforatum
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
| Site Information |
Value / Class |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
787 | 35 | 2289 |
| Slope
Gradient (%) |
28 | 0 | 210 |
|
Aspect (degrees) |
190 | 30 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 0 | 7 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
102 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(10), ESSF(6), ICH(18), IDF(50), MS(1), PP(6) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to dry fields, roadsides and disturbed areas in the lowland, steppe and montane zones; infrequent in SW and WC BC, frequent in SC BC; introduced from Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Hypericum perforatum L.