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.
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.
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;
Capsules, stalks down-curved.
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
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
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
Synonyms and Alternate Names:
Utricularia vulgaris L. p.p.
Utricularia vulgaris subsp. macrorhiza (Le Conte) Clausen
Utricularia vulgaris var. americana Gray