Leaves are deciduous, simple, alternate, rhomboid to broadly ovate to deltoid, 3-6" long, medium green on upper surface, whitish silver on lowers. You can see the veins really nicely on this plant. Petioles may be flattened, which causes them to flutter in the breeze.
Fruit is a capsule, releasing "cotton" all over the place. Have seen streets looking like there is snow covering the sidewalks and gutters.
Bark is smooth gray when young, later darker gray with deep fissures.
Misidentification:
Cant think of anything.
Location:
Soquel Creek, Aptos Creek