White sagebrush

Ozone injury usually appears as black or purple spots (stipple), yellow or white bleached spots (chlorotic mottle, needle tip burn), or leaf browning (necrosis). Ozone may also cause premature leaf drop (senescence).

White sagebrush Courtesy, USDA Natural Resources Conservation Service

White sagebrush Courtesy, North Haven Gardens

White sagebrush Courtesy, USDA Natural Resources Conservation Service