Utricularia vulgaris subsp. macrorhiza (Leconte) R.T. Clausen
greater bladderwort
Lentibulariaceae (Bladderwort family)
Introduction to Vascular Plants
greater bladderwort
Lentibulariaceae (Bladderwort family)
Introduction to Vascular Plants
Photograph
Map
Distribution of Utricularia vulgaris subsp. macrorhiza
Click here to view the full interactive map and legend
Species Information
General:
Perennial aquatic herb without roots; stems very slender, floating, submerged or creeping along the bottom, leafy, up to 1 m long and 1 mm or more thick.
Leaves:
Alternate, numerous, 1-5 cm long, pinnatifid, divided into 2 parts at the base and then again repeatedly but unequally into more than 20 flattened ultimate segments, the segments circular in cross-section, narrowed and pointed towards the tips, margins bristly; bladders numerous, borne on the leaves and 1-3 mm wide; winter buds egg-shaped or more elliptic, 1-2 cm long, with hyaline bristles.
Flowers:
Inflorescence of 6-20 flowers in lax racemes at the end of stalks 6-20 cm long; corollas yellow, the lower lips saddle-shaped,1-2 cm long with well-developed cylindric spurs, upper lips shorter than the lower lips;
Fruits:
Capsules, stalks down-curved.
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 Utricularia vulgaris ssp. macrorhiza
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) |
892 | 20 | 1581 |
| Slope
Gradient (%) |
0 | 0 | 0 |
|
Aspect (degrees) |
180 | 180 | 180 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
7 | 4 | 8 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
98 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BWBS(1), CDF(15), CWH(20), ICH(7), IDF(31), MS(4), PP(2), SBPS(12), SBS(5) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Lakes and ponds in the lowland, steppe and montane zones; common S of 55degreeN in BC, less frequent northward; amphiberingian, N to AK, YT and NT, E to NF and S to MO, VA, TX, MX and CA; E Asia.Status Information
Synonyms
Synonyms and Alternate Names:
Utricularia macrorhiza Leconte