United States, California, Napa, Inner North Coast Ranges. Near top of south side of canyon of Cedar Creek, along the road from Devilhead Road. T11N R05W S26 NE1/4 of NE1/4 USGS Quadrangle: Jericho Valley 1:24,000
38.780278 -122.375833 NAD 1927
T11N R05W S26 NE1/4 of NE1/4; 38§ 46m 49s N; 122§ 22m 33s W
564 meters (1850ft)
Near top of south side of canyon. Rocky north-facing slope of serpentine chaparral. Mostly along the low rocky road cutbank; with lots of Fritillaria leaves, Festuca californica. Plants forming dense clumps.