Alisma californicum Micheli Machaerocarpus californicus (Torr.

D. californicum is a plant of wet environments in the western United States including Washington state, Oregon, northern California, Idaho, Nevada, and Montana.

[3] This is a tough-stemmed plant which may live submersed in water or erect on mud or moist soils.

The inflorescence yields a flower at the end of each of several long peduncles.

The flower has three white or pink petals, each with toothed or fringed ends and sometimes a yellow spot at the base.