Packera macounii (Greene) W.A. Weber & Á. Löve
Macoun's groundsel
Asteraceae (Aster family)
Introduction to Vascular Plants
Macoun's groundsel
Asteraceae (Aster family)
Introduction to Vascular Plants
Photograph
© Paul Chapman (Photo ID #66375)
Species Information
General:
Perennial herb from a fibrous-rooted, short, ascending or horizontal rhizome or woody stem-base; stems erect, solitary or several, branched above, glabrous or sparsely long-hairy to densely woolly-hairy, 13-85 cm tall.
Leaves:
Basal leaves thick, lanceolate to oblanceolate, stalked, 4-27 cm long including the stalk, 0.5-3 cm wide, thinly white-woolly when young becoming hairless by flowering time, entire to coarsely toothed; stem leaves similar, lanceolate to linear, thinly to densely woolly-hairy in the leaf axils, progressively reduced upwards, becoming unstalked.
Flowers:
Heads with ray and disk flowers, few to many in an open, flat-topped inflorescence; involucres 5-9 mm tall; involucral bracts lanceolate, hairy at the tips, green, margins translucent; bracteoles few, inconspicuous; ray flowers yellow, mostly 6-12 mm long; disk flowers yellow.
Fruits:
Achenes oblong, nerved, glabrous; pappus of white hairlike bristles.
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 Packera macounii
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) |
1094 | 777 | 1982 |
| Slope
Gradient (%) |
2 | 0 | 7 |
|
Aspect (degrees) |
52 | 130 | 335 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 1 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
4 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
ESSF(1), IDF(2), PP(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry open forests, disturbed areas and rock outcrops or limestone quarries in the lowland zone; rare on S Vancouver Island, Texada Island and adjacent mainland; S to OR.Status Information
Synonyms
Synonyms and Alternate Names:
Senecio ligulifolius Greene
Senecio macounii Greene