United States, California, Napa, Napa County: Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel.
38.773889 -122.335556 NAD83
38° 46m 26s N; 122° 20m 8s W
595 meters
1952ft
Large vernal pool on border of CDFW and BLM properties. Substrate looks volcanic, although serpentine soils are present to the west.
Eryngium, Downingia cuspidata, Cuscuta
The phenology of the plants at this spot is about a month earlier this year than last. Small cleistogamous annual. Not a dominant in the pool.