© Gary Ansell (Photo ID #13500)
General:
Deciduous tree with heavy, craggy branches, up to 25 m tall but often small, shrubby and as short as 1 m in dry, rocky habitats; trunks up to 1 m wide; bark light grey with thick scaly ridges.
Leaves:
Alternate, deciduous, blades oblong to egg-shaped in outline with 3-7 lobes per side, the lobes entire or 2-3 toothed, up to 12 cm long with stalks 1-2 cm long, the largest sinuses extending more than halfway to the midrib, bright shiny green and glabrous above, paler below with reddish to yellow hairs, turning yellowish-brown in the fall.
Flowers:
Inflorescence of tiny inconspicuous male and female flowers, these separate but on the same tree; female flowers clustered or single surrounded by a scaly cuplike involucre; male flowers numerous in catkins.
Fruits:
Acorns, 1-seeded, maturing in one season, unstalked, egg-shaped to nearly round, 2-3 cm long; cups shallow, bumpy, hairy within.
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
Flower Colour:
Yellow
Blooming Period:
Mid Spring
Fruit/Seed characteristics:
Colour: Brown
Present from Summer to Fall
Source: The USDA
Site Information |
Value / Class |
||
Avg |
Min |
Max |
|
Elevation
(metres) |
116 | 20 | 315 |
Slope
Gradient (%) |
34 | 0 | 135 |
Aspect (degrees) |
245 | 23 | 360 |
Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 1 | 7 |
Modal
Nutrient Regime
Class |
B | ||
#
of field plots species was recorded in: |
82 | ||
Modal
BEC Zone Class |
CDF | ||
All BEC Zones (# of stations/zone) species was recorded in |
CDF(81), CWH(1) | ||
Source:
Klinkenberg 2013
|