Senecio eremophilus Richardson
Desert Ragwort (dryland ragwort; Elmer's Butterweed)
Asteraceae (Aster family)
Introduction to Vascular Plants
Desert Ragwort (dryland ragwort; Elmer's Butterweed)
Asteraceae (Aster family)
Introduction to Vascular Plants
SUBTAXA PRESENT IN BC
Senecio eremophilus var. eremophilus
Species Information
General:
Perennial herb from a short, poorly developed taproot; stems erect, mostly solitary, branched above, 0.3-1.2 m tall, glabrous.
Leaves:
Basal leaves soon deciduous; stem leaves lanceolate to oblanceolate, stalked, 4-15 cm long including the stalk, 1-4 cm wide, coarsely deeply-toothed to deeply pinnately cut, glabrous or nearly so; stem leaves reduced and becoming unstalked upwards.
Flowers:
Heads with ray and disk flowers, several to numerous in a flat-topped to rounded inflorescence; involucres 7-9 mm tall; involucral bracts lanceolate with long-pointed tips, inconspicuously black-tipped; bracteoles few, inconspicuously black-tipped; ray flowers yellow, mostly 6-10 mm long; disk flowers yellow.
Fruits:
Achenes oblong, ribbed, glabrous; pappus of white hairlike bristles.
Ecology
Ecological Framework for Senecio eremophilus
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) |
1302 | 1160 | 1444 |
| Slope
Gradient (%) |
10 | 5 | 15 |
|
Aspect (degrees) |
174 | 174 | 174 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 4 | 5 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
2 | ||
| Modal
BEC Zone Class |
MS | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
MS(1) | ||
|
Source:
Klinkenberg 2013
|
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