Mimulus alatus

This plant's pink flowers resemble a monkey's face. The plant puts out its flowers a few at a time, extending its bloom for a month or more. A favorite of bumblebees, who pry open the closed flowers to reach the pollen and nectar the monkeyflower has saved for them. A good plant for wet spots, it can tolerate occasional flooding. It prefers a rich soil that does not dry out.

Photo 1 Cbaile19 , CC0 1.0. Photo 2 Eric in SF, CC BY-SA 3.0.