Cypripedium passerinum Richardson
sparrow's-egg lady's-slipper (northern lady's-slipper)
Orchidaceae (Orchid family)
Introduction to Vascular Plants
sparrow's-egg lady's-slipper (northern lady's-slipper)
Orchidaceae (Orchid family)
Introduction to Vascular Plants
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Species Information
General:
Perennial herb from slender rhizomes, with coarse, fibrous roots; stems 10-35 cm tall, long-soft-hairy, leafy.
Leaves:
Stem leaves 3 to 5, broadly lanceolate to elliptic, 5-16 cm long, sticky-hairy, ribbed, the base sheathing.
Flowers:
Inflorescence of 1 to 3 small, terminal flowers; lateral sepals green, 1-1.5 cm long, free almost to base; lateral petals white, broadly linear to oblong, about length of lip; lip balloon-like, egg-shaped, 1.5-2 cm long, white, faintly purple-spotted on inside.
Fruits:
Capsules, erect, ellipsoid, 2-3 cm long, hairy.
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 Cypripedium passerinum
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) |
942 | 690 | 1251 |
| Slope
Gradient (%) |
0 | 0 | 3 |
|
Aspect (degrees) |
0 | 0 | 180 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 3 | 7 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
10 | ||
| Modal
BEC Zone Class |
BWBS | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BWBS(5), ICH(1), IDF(1), MS(1), SWB(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist forests, swamps, river terraces, edges of lakes and streams, and talus slopes in the montane and subalpine zones; infrequent in N and E BC, rare in SC BC; N to AK, YT and NT, E to PQ and S to MT.Status Information
Synonyms
Synonyms and Alternate Names:
Cypripedium passerinum var. minganense Victorin
Cypripedium passerinum var. passerinum