Arabidopsis thaliana (L.) Heynh.
mouse-ear (mouseear cress; Thale cress)
Brassicaceae (Mustard family)
Introduction to Vascular Plants
mouse-ear (mouseear cress; Thale cress)
Brassicaceae (Mustard family)
Introduction to Vascular Plants
Species Information
General:
Annual herb from a slender taproot; stems 1-several, erect, 10-40 cm tall, hairy near base with simple, spreading hairs, glabrous above.
Leaves:
Mostly in basal rosette, oblanceolate, entire or minutely dentate, 1-4 cm long, with simple and branched hairs; stem leaves lanceolate, nearly unstalked, 5-20 mm long, upper ones usually glabrous.
Flowers:
In racemes; flower stalks slender, erect to ascending, 5-10 mm long; petals white, about 3 mm long, narrowly egg-shaped; sepals approximately 1.5 mm long.
Fruits:
Siliques, linear, 10-15 mm long, less than 1 mm wide, glabrous; seeds numerous, in one row, less than 1 mm long, oblong.
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 Arabidopsis thaliana
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) |
870 | 760 | 997 |
| Slope
Gradient (%) |
22 | 0 | 73 |
|
Aspect (degrees) |
174 | 90 | 270 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 1 | 4 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
9 | ||
| Modal
BEC Zone Class |
PP | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
ICH(2), PP(6) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Mesic to dry roadsides, gardens, fields and waste places; frequent on Vancouver Island, the Gulf Islands and Lower Mainland, rare in SE and SC BC; introduced from Eurasia.Status Information
Synonyms
Synonyms and Alternate Names:
Arabis thaliana L.
Sisymbrium thalianum (L.) J. Gay & Monn.