Logan Canyon. Guinavah-Malibu Campground site. (This area is currently under construction and is mostly disturbed flats dominated by weeds--Arctium, Isatis, etc).
Longitude (DD)
-111.6987833
Latitude (DD)
41.76192167
Elevation (m)
1540
Habitat
On Isatis tinctoria in disturbed shaded area with Verbascum thapsus, Isatis, Arctium, Melilotus, etc. Near riparian zone, and adjacent to disturbed open flats.
Description
Fairly common? But most infections seemingly light.
Collection notes
Four mildews were collected in this immediate vicinity: CJR6278 on Trifolium, 6279 on Taraxacum, 6280 on Isatis, and 6281 on Hesperis.
Voucher image
Photos posted on iNaturalist: https://www.inaturalist.org/observations/228092853.