Erysimum cheiranthoides L.
wormseed mustard (wormseed wallflower)
Brassicaceae (Mustard family)
Introduction to Vascular Plants
wormseed mustard (wormseed wallflower)
Brassicaceae (Mustard family)
Introduction to Vascular Plants
Species Information
General:
Annual or biennial herb from a taproot; stems simple or branched, leafy, 0.2-1.0 m tall, sparsely hairy with 2-pronged hairs.
Leaves:
Basal leaves lacking; stem leaves linear to lanceolate or oblanceolate, entire or minutely toothed, 2-8 cm long, 2-18 mm wide, finely hairy with 3-pronged hairs.
Flowers:
Racemes bractless; flower stalks 4-15 mm long, spreading or spreading-ascending; petals pale yellow, 3.5-5 mm long; sepals yellowish or greenish, 2-3 mm long.
Fruits:
Siliques, ascending to erect, 1.5-2 (3) cm long, about 1 mm wide, round in cross section, finely appressed-hairy; beaks 0.5-1 mm long; seeds 1-1.2 mm long, wingless.
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 Erysimum cheiranthoides
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) |
993 | 585 | 1770 |
| Slope
Gradient (%) |
19 | 0 | 75 |
|
Aspect (degrees) |
243 | 185 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 1 | 6 |
| Modal
Nutrient Regime
Class |
E | ||
| #
of field plots species was recorded in: |
11 | ||
| Modal
BEC Zone Class |
BG | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(3), MS(1), PP(1), SBPS(1), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist to mesic roadsides, fields and waste places in the lowland, steppe and montane zones; frequent throughout BC except the Queen Charlotte Islands and adjacent coast; circumboreal, N to AK, YT and NT, E to NF and S to NC, MI, UT and CA; Eurasia, native status uncertain.Status Information
Synonyms
Synonyms and Alternate Names:
Cheirinia cheiranthoides (L.) Link
Erysimum cheiranthoides subsp. altum Ahti
Erysimum cheiranthoides subsp. cheiranthoides