Boechera lyallii S. Watson
jewelled suncress
Brassicaceae (Mustard family)
Introduction to Vascular Plants
jewelled suncress
Brassicaceae (Mustard family)
Introduction to Vascular Plants
Species Information
General:
Perennial herb from a branched stem-base; stems several, 10-25 cm tall, glaucous and glabrous throughout or with a few hairs toward base.
Leaves:
Basal leaves in a prominent rosette, lanceolate, entire or few-toothed, 1.5-3 cm long, 0.3-7 mm wide, gradually narrowed to a long, slender stalk, glaucous and glabrous; stem leaves unstalked, ear-like at the bases, 2-3 cm long, 5-8 mm wide, entire or few-toothed, glabrous and glaucous.
Flowers:
Racemes few-flowered, symmetric; petals 6-10 mm long, purple; sepals not bulging on one side at the base.
Fruits:
Siliques, erect, somewhat spreading from the axis of the inflorescence, 3-6 cm long, 2-3 mm wide; seeds about 2 mm long, with wings less than 0.5 mm long.
Notes:
Arabis depauperata is tentatively placed here. It has been variously treated as a variety of A. lemmonii, as a synonym of A. microphylla and A. lyallii (Hitchcock et al. 1964, Rollins 1993), or as a separate species (Mulligan 1996).
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 Boechera lyallii
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) |
2104 | 700 | 2563 |
| Slope
Gradient (%) |
49 | 0 | 140 |
|
Aspect (degrees) |
149 | 12 | 355 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
2 | 0 | 7 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
68 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(10), BG(2), ESSF(41), ICH(1), IDF(1), IMA(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry to mesic meadows, rock outcrops, scree slopes and talus slopes in the subalpine to alpine zones; frequent in S BC east of the Coast-Cascade Mountains; N to YT and S to CA and UT.Status Information
Synonyms
Synonyms and Alternate Names:
Arabis armerifolia Greene
Arabis densa Greene
Arabis lyallii S. Watson