Hypericum scouleri subsp. nortoniae Hook. (M.E. Jones) J.M. Gillett
western St. John's-wort (Norton's St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
western St. John's-wort (Norton's St. Johnswort)
Clusiaceae
Introduction to Vascular Plants
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Map
Distribution of Hypericum scouleri subsp. nortoniae
Click here to view the full interactive map and legend
Species Information
General:
Perennial herb from a long stolon and rhizome; stems erect, branched above, glabrous, 5-80 cm tall.
Leaves:
Stem leaves oblong to rounded, unstalked, obtuse, 1-3 cm long, 0.5-1.5 cm wide, glabrous with black marginal dots.
Flowers:
Inflorescence up to 50+ flowered; petals pale to bright yellow, 7-12 mm long; sepals narrowly egg-shaped to triangular, obtuse, 3-4 mm long; stamens 75-100, united basally into 3 groups; styles 3, 3-5 mm long.
Fruits:
Membranous capsules, 6-9 mm long; seeds yellow to brownish, about 0.8 mm long, finely net-veined and longitudinally grooved.
Notes:
Two subspecies occur in Bcd:
1. Stems few branched in the inflorescence, mostly 5-20 cm tall; leaves rounded; plants infrequent at higher elevations in S BC, most common in SE BC....................... ssp. nortoniae (M.E. Jones) J. Gillett
1. Stems branched below the inflorescence, mostly 20-80 cm tall; leaves narrowly egg-shaped; infrequent at lower elevations in S BC, most common in SW BC..........................ssp. scouleri
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 scouleri ssp. nortoniae
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) |
1147 | 0 | 2225 |
| Slope
Gradient (%) |
10 | 0 | 73 |
|
Aspect (degrees) |
202 | 65 | 295 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 1 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
45 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(2), CDF(2), CWH(26), ESSF(12), MS(1), PP(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist to wet streamsides, estuaries, marshes and open slopes in all zones except the alpine and steppe zones; infrequent in S BC; S to WY, CA and MX.Status Information
Synonyms
Synonyms and Alternate Names:
Hypericum formosum
Hypericum formosum subsp. scouleri
Hypericum formosum var. nortoniae (M.E. Jones) C.L. Hitchc.
Hypericum nortoniae M.E. Jones