Tonestus lyallii (A. Gray) A. Nelson
Lyall's goldenweed
Asteraceae (Aster family)

Introduction to Vascular Plants

Photograph

© Vanessa Robinson     (Photo ID #87002)


Map

E-Flora BC Static Map

Distribution of Tonestus lyallii
Click here to view the full interactive map and legend

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.

SourceThe Illustrated Flora of British Columbia

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.

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)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
2198 252 2705
Slope Gradient (%)
27 0 74

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

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)

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.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Haplopappus lyallii A. Gray