Pseudognaphalium thermale (E. E. Nelson) G. L. Nesom
slender cudweed
Asteraceae (Aster family)
Introduction to Vascular Plants
slender cudweed
Asteraceae (Aster family)
Introduction to Vascular Plants
Map
Distribution of Pseudognaphalium thermale
Click here to view the full interactive map and legend
Species Information
General:
Short-lived perennial herb from a woody taproot; stems several, loosely woolly, 20-70 cm tall.
Leaves:
Basal and lower stem leaves, alternate, entire, more or less woolly-hairy, numerous, broadly linear, 3-10 cm long, 2-10 mm wide, narrowly extending down the stem; middle and upper stem leaves similar, slightly reduced upward.
Flowers:
Heads disciform, numerous, in tight clusters, not conspicuously leafy, in a broad, round-topped inflorescence; involucres 4-7 mm tall; involucral bracts white to tan, woolly-hairy at the base.
Fruits:
Achenes nerveless, glabrous; pappus bristles distinct, falling separately.
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 Pseudognaphalium thermale
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) |
297 | 25 | 634 |
| Slope
Gradient (%) |
18 | 0 | 70 |
|
Aspect (degrees) |
173 | 45 | 315 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 3 | 5 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
43 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CDF(1), CWH(41) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry open slopes, forest openings and recently burned forests in the lowland, steppe and montane zones; common in S BC; S to ID, MT, CO and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Gnaphalium microcephalum Nutt.