Mimulus guttatus, Creek Monkeyflower
It is a showy yellow-blooming perennial that sometimes acts like an annual, depending on amount of moisture. It blooms early in the spring for several months. Found in moist places, like seeps, around creeks, near ponds, along roadsides. Vigorous and easy to grow, the new leaves are edible when young, and the flowers are a native bee magnet. Spreads through rhizomes as well as reseeding freely. 1' tall, upright habit. Also known as seep monkeyflower, it is also more recently listed as Erythranthe guttata.