Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey.
few-flowered meadowrue (fewflower meadow-rue)
Ranunculaceae (Buttercup family)
Introduction to Vascular Plants
few-flowered meadowrue (fewflower meadow-rue)
Ranunculaceae (Buttercup family)
Introduction to Vascular Plants
Species Information
General:
Perennial herb from a rhizome; stems erect, slender, 30-100 cm tall, simple or branched above, smooth.
Leaves:
Mostly stem leaves, alternate, the basal and stem leaves stalked, (2-) 3-times 3-parted, the leaflets thin, green and smooth above, paler and glandular-hairy below, circular to egg- or heart-shaped, 10-20 mm long, the tips round-toothed; upper stem leaves unstalked.
Flowers:
Inflorescence of few-flowered, axillary racemes, the bracts leaf-like, large, the flowers bisexual, the flower stalks erect in flower, curved near tip in fruit; petals absent; sepals 5, whitish or greenish, often purplish-tinged, elliptic, 2-3.5 mm long; stamens 12-20, the filaments whitish, more or less club-shaped, 3-4.5 mm long, the anthers 0.5-0.8 mm long.
Fruits:
Achenes, 6-12, spreading to reflexed, obliquely egg-shaped to half diamond-shaped, outer margin straight, 5-6 mm long, 3-4 mm wide, strongly flattened, minutely glandular-hairy, strongly 3- to 5-veined on each side, stalks 0.3-1.5 mm long; beaks 1-1.5 mm long, straight.
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 Thalictrum sparsiflorum
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) |
769 | 12 | 2000 |
| Slope
Gradient (%) |
12 | 0 | 60 |
|
Aspect (degrees) |
197 | 72 | 290 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 2 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
26 | ||
| Modal
BEC Zone Class |
BWBS | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BWBS(10), CWH(3), ESSF(4), PP(1), SBS(2), SWB(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist meadows, thickets and forests in the montane zone; frequent in N BC, less frequent S to 53degreeN, amphiberingian, N to AK, YT and NT, E to ON and S to CO, UT, NV and CA; NE Asia.Status Information
Synonyms
Synonyms and Alternate Names:
Thalictrum sparsiflorum var. richardsonii (A. Gray) B. Boivin