Hypericum perforatum L.
common St. John's-wort (common St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
common St. John's-wort (common St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Hypericum perforatum ssp. perforatum
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.
Ecology
Ecological Framework for Hypericum 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
|
|||