Large annual plants, stems hollow, often reddish in colour. Flowers irregular yellow-orange, spotted red. Flowers to 2 cm long and 1.5 cm wide, growing in clusters of 2-4 in upper leaf axils. Branching growth habit. Leaves alternate, ovate, toothed, leaf highlighted above was 8 cm long and 4.5 cm wide. Plants glabrous.

Habitat is banks of streams and lakes, edges of beaver swamps. Common.

Height listed in Budd's Flora to 150 cm, we measured plants to 125 cm tall.

The above photos were taken July 21st, along beaver dams, Duck Mountain Provincial Park, 300 km north east of our home in Regina, SK.