Large Monkey Flower (Seep Monkeyflower, Golden Monkeyflower)
July 4, 1806, in Missoula, Montana.
An extremely variable, leafy plant ranging from spindly and tiny to large and bushy, with yellow bilaterally symmetrical flowers on slender stalks in upper leaf axils. Corolla 0.5-1.5 in (1.3-3.8 cm) long. Leaves 0.5-4 in (1.3-10 cm) long, ovate. Height: to 3 ft (0.3 m).
Wet places from sea level to mountains.
Throughout western North America from Alaska to Mexico; naturalized in the East and occurring in Newfoundland, New Brunswick, New York, Connecticut, Pennsylvania, Delaware, Michigan, and probably elsewhere.