Senecio fremontii Torr. & A. Gray
Fremont's Ragwort (dwarf mountain butterweed; dwarf mountain ragwort)
Asteraceae (Aster family)
Introduction to Vascular Plants
Fremont's Ragwort (dwarf mountain butterweed; dwarf mountain ragwort)
Asteraceae (Aster family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Senecio fremontii var. fremontii
Species Information
General:
Perennial herb from a taproot and a branching, woody stem-base; stems ascending to prostrate, several, branched, glabrous, 10-20 cm tall.
Leaves:
Basal leaves few and soon deciduous; stem leaves thickish, somewhat succulent, egg-shaped to spoon-shaped or oblanceolate, regularly to irregularly toothed, stalked, 1-4 cm long including the stalk, 0.2-2 cm wide, upper leaves slightly reduced and becoming unstalked, glabrous.
Flowers:
Heads with ray and disk flowers, numerous at the ends of branches, bases crisp-hairy; involucres 7-12 mm tall; involucral bracts lanceolate, with long-pointed tips, inconspicuously soft-hairy; bracteoles few, inconspicuous; rays yellow, 6-10 mm long; disk flowers yellow.
Fruits:
Achenes oblong, nerved, glabrous; pappus of white hairlike bristles.
Ecology
Ecological Framework for Senecio fremontii
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) |
2265 | 1870 | 2659 |
| Slope
Gradient (%) |
48 | 10 | 101 |
|
Aspect (degrees) |
118 | 20 | 300 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 1 | 6 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
25 | ||
| Modal
BEC Zone Class |
AT | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(11), BAFA(2), ESSF(9), IMA(3) | ||
|
Source:
Klinkenberg 2013
|
|||