Sp. Pl. 1: 284. 1753
Phenology: Flowering spring (Mar–Jun).
Habitat: Wet fields, vernal pools, banks of streams and lakes
Elevation: 0-3000 m
Alta., B.C., Man., Ont., Sask., Ala., Ariz., Ark., Calif., Colo., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Minn., Miss., Mo., Mont., Nebr., N.Mex., N.C., N.Dak., Okla., Oreg., Pa., S.C., S.Dak., Tenn., Tex., Utah, Va., Wash., Wyo., Mexico (Baja California), Europe, swAsia, nAfrica.
Plants of Myosurus minimus from a few sites in coastal southern California, northern Baja California, and immediately west of Riley, Oregon, sometimes have short scapes, so that the heads of achenes are immersed in the leaves. These plants, which have been called M. minimus subsp. apus (Greene) G. R. Campbell, M. minimus var. apus Greene, or M. clavicaulis M. E. Peck are indistinguishable from some recombinant lines found in M. minimus × sessilis hybrid swarms (see discussion under M. sessilis), but they occur outside the current range of M. sessilis. D. E. Stone (1959) has suggested that they resulted from past hybridization between the two species, perhaps at a time when M. sessilis had a wider range than it does now.
The Navaho-Ramah used Myosurus minimus medicinally to apply to antbites (D. E. Moerman 1986).