United States, Illinois, Cass Co., W of route 67, Illinois River floodplain, NW of shopping center and Wal-Mart store, N of Carp Lane, Beardstown, Beardstown 7.5 min. quadrangle; coordinate datum WGS84/NAD83. T18N, R12W, Sec. 22, SW¼, NE¼, NW¼.
40.0046 -90.4413
Wet sand; ephemeral sand pond (shore), excavated and somewhat degraded; with Fimbristylis vahlii, Eragrostis hypnoides, Lipocarpa micrantha, Fimbristylis autumnalis, Eleocharis obtusa, Gratiola neglecta; in bank.