United States, California, Butte, Ca. 1.5 mi e of Pulga, n side of Feather River canyon. T23N R05E S29 SE corner USGS Quadrangle: Pulga 1:24,000
39.814722 -121.430556 +-805m. NAD83
T23N R05E S29 SE corner; 39§ 48m 53s N; 121§ 25m 50s W
671 meters
2200ft.
On s facing bank, crumbly granite soil. Open area in Montane Forest. Many stems from a woody caudex. With: Pinus ponderosa, Pseudotsuga menziesii, Quercus chrysolepis, Quercus kelloggii, Mimulus kelloggii.
Voucher specimen for "Studies in the Reproductive Biology of Mustard Species Occurring in Butte County, California"--R.E. Preston; Summer, 1983.