United States, California, Butte, About 3 mi SE of Stirling City, on dirt road on the west side of the West Branch of the Feather River; along the edge of the road. Section 10.
39.869444 -121.515278 +-805m. NAD83
39§ 52m 10s N; 121§ 30m 55s W
1100 meters (3608ft)
In dry, loose gray soil along the edge of the dirt road within region of yellow pine forest; flowers are dark purple.