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;
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2020-10-29 3:12:10 PM
The information contained in the E-Flora atlas pages is derived from expert
sources as cited in each section. This information is scientifically based.
E-Flora also acts as a portal to other sites via deep links. As
always, users should refer to the original sources for complete information.
E-Flora BC is not responsible for the accuracy or completeness of the