General:
Perennial herb from a long rhizome; stems erect, solitary, occasionally branched below the middle, sparsely to densely long-hairy, becoming glandular above, 20-100 cm tall.
Leaves:
Basal leaves often deciduous by flowering time; stem leaves 5-10 pairs, rarely only 4 pairs, opposite, 3-30 cm long, 0.3-8 cm wide, lanceolate to oblanceolate, 3-5 veined, sparsely to densely long-hairy to silvery-hairy, stalked below, not stalked above, entire to toothed, reduced upward.
Flowers:
Heads with ray and disk flowers, 5-15, rarely as few as 1, usually erect, the bases sparsely to densely long-hairy with white hairs, often glandular; involucres 8-15 mm tall; involucral bracts lanceolate, rounded to abruptly pointed, sparsely to densely long-hairy with a conspicuous tuft of whitish hairs at the apex; ray flowers yellow, usually 10-16, apical teeth conspicuous; disk flowers yellow.
Fruits:
Achenes 3.8-6 mm long, cylindric, short-hairy and glandular to subglabrate; pappus tawny or whitish, finely-barbed or somewhat feathery.
Notes:
Three fairly well-marked taxa may be recognized in BC.
1. Pappus somewhat feathery, tawny; involucres densely long-hairy with some unstalked glands, the basal hairs with prominent crosswalls; leaves usually toothed and unstalked or the lowermost stalked..................... ssp. chamissonis
1. Pappus finely-barbed, whitish to straw-colored; involucres densely long-hairy but without unstalked glands, the basal hairs with less prominent crosswalls; leaves usually toothed and long-stalked, at least below.
2. Leaves densely silvery-hairy..................... ssp. incana (A. Gray) Maguire
2. Leaves less densely hairy, never silvery....................... ssp. foliosa (Nutt.) Maguire
Flower Colour:
Yellow
Blooming Period:
Early Summer
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source: The USDA
Site Information |
Value / Class |
||
Avg |
Min |
Max |
|
Elevation
(metres) |
1612 | 61 | 2520 |
Slope
Gradient (%) |
15 | 0 | 71 |
Aspect (degrees) |
163 | 8 | 360 |
Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 1 | 8 |
Modal
Nutrient Regime
Class |
D | ||
#
of field plots species was recorded in: |
130 | ||
Modal
BEC Zone Class |
ESSF | ||
All BEC Zones (# of stations/zone) species was recorded in |
AT(4), BAFA(2), CWH(1), ESSF(63), ICH(3), IDF(5), IMA(3), MS(9), PP(1), SBPS(33), SBS(5) | ||
Source:
Klinkenberg 2013
|