Utricularia minor is a smaller species than utricularia vulgaris, with paler flowers, a noticeably shorter spur, and a less-pronounced bulge in the centre of the lower lip.
Main flower color:
Most common in Ireland and Scotland; also small, scattered populations in southern England and Wales
A few cm; most is underwater
Still water, mainly on acidic soils
Pale yellow, around 7 mm long, in clusters of two to five on reddish, leafless stalks. The lower lip is around twice the size of the upper lip, crossed by red veins at its base, and it has a short, blunt spur
Submerged, very short (less than 1 cm long), finely palmately divided into thin, untoothed, bristle-tipped segments
June to July