United States, California, Colusa, Sacramento Valley. Extreme west edge of Sacramento Valley; 1.8 km southeast of Funks Reservoir and 0.2 km northeast of Tehama-Colusa Canal. Large +- alkaline vernal pool/marsh; mucky clay soil. North edge of large wetland. T17N R04W S23 NE1/4 of NW1/4 USGS Quadrangle: Sites 1:24,000
39.316389 -122.278611 NAD 1983
T17N R04W S23 NE1/4 of NW1/4; 39§ 18m 59s N; 122§ 16m 43s W
49 meters (161ft)
Large +- alkaline vernal pool/marsh; mucky clay soil. North edge of large wetland; mucky wet gray soil, thick with graminoids especially this species. Abundant here; these plants greener, with purple ends to inflorescence awns, than #10244 which is less abundant.
Label says: California Department of Water Resources Offstream Storage Investigation: Sites - Holthouse Res. site VOUCHER NO. 11-003.