Dawson's angelica
Apiaceae
Introduction to Vascular Plants
Species Information
General:
Stout perennial herb from a fleshy enlargement above the taproot; stems erect, 0.3-1.2 m tall.
Leaves:
Basal and stem leaves compound with three major divisions that are in turn divided; leaflets with or without stalks, closely toothed, 2.5-9 cm long.
Flowers:
Inflorescence terminal, of umbrella-like clusters; involucral bracts toothed, leafy; flowers pale-greenish to yellow, drying a distinct yellow.
Fruits:
Numerous, 4-7 mm long, glabrous, with narrowly winged dorsal ribs.
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
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) |
1874 | 1295 | 2226 |
| Slope
Gradient (%) |
33 | 0 | 100 |
|
Aspect (degrees) |
31 | 0 | 340 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 1 | 6 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
45 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(19), ESSF(22), IMA(1), MS(3) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet to moist streambanks and meadows in the montane zone; infrequent in extreme SE BC; E to SW AB and S to ID and MT.Status Information
Taxonomic Keys
TAXONOMIC KEY TO ANGELICA
1. Fruits slightly flattened, the subequal wings scarcely winged; plants mainly coastal A. lucida 1. Fruits strongly flattened, the lateral wings broadly winged; plants not essentially coastal. 2. Flowers yellowish; involucres present, leafy A. dawsonii 2. Flowers white, greenish-white or sometimes pinkish; involucres lacking or rarely a few bracts present. 3. Main axis of the leaves bent, leaflets deflexed A. genuflexa 3. Main axis of the leaves straight, leaflets not deflexed A. arguta |