United States, California, Shasta, Shasta-Trinity National Forest. Along Hwy. 89, N of the Hwy. 299-89 intersection. 41°00'N 121°38'W 950 m
Disturbed, dry open pine-oak woodlands. Banks of vernal pool. 950 m. Aquatic fern, much branched under water; leaves flowing common in shallow pond. Sterile.