Tonestus lyallii (A. Gray) A. Nelson
Lyall's goldenweed
Asteraceae (Aster family)
Introduction to Vascular Plants
Lyall's goldenweed
Asteraceae (Aster family)
Introduction to Vascular Plants
Species Information
General:
Perennial herb from a poorly-developed taproot and branching, woody stem-base, often with creeping rhizomes as well; stems erect, several, simple, 3-15 cm tall.
Leaves:
Basal leaves oblanceolate to spoon-shaped or oblong, tufted, alternate, strongly glandular-hairy, 1.5-7 cm long, 4-12 mm wide; stem leaves similar, gradually reduced upwards.
Flowers:
Heads with ray and disk flowers, solitary; involucres 6-12 mm tall, bell-shaped; involucral bracts lanceolate, papery, sometimes leafy, subequal, glandular-hairy; ray flowers yellow, 13-35, 6-11 mm long; disk flowers yellow, 4-7 mm long.
Fruits:
Achenes elongate, 3-4 mm long, glabrous or softly-hairy; pappus of tawny 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 Tonestus lyallii
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) |
2198 | 252 | 2705 |
| Slope
Gradient (%) |
27 | 0 | 74 |
|
Aspect (degrees) |
158 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 0 | 6 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
141 | ||
| Modal
BEC Zone Class |
AT | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(67), BAFA(5), ESSF(49), IMA(17), MS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to dry meadows, rocky slopes and fellfields in the subalpine and alpine zones; common in S BC in and E of the Coast-Cascade Mountains; E to SW AB and S to NV and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Haplopappus lyallii A. Gray