(KRON) -- A resident who went foraging for wild mushrooms in the San Francisco Bay Area has died after eating the toxic plant, health officials said Tuesday. The mushrooms, also known as "death cap mushrooms," were foraged from a regional park in Contra Costa County. During California's rainy seas on, health officials have issued several warnings urging residents against eating wild mushrooms. Knowing the difference between an edible mushroom, and a toxic one, is challenging even for experienced foragers. A resident in Sonoma County died earlier this month from consuming wild mushrooms. "Early rains and a mild fall have led to profusion of the toxic death cap mushrooms in Northern California," said Sonoma County Interim Health Officer Dr. Michael Stacey. "Eating wild mushrooms gathered without expert identification can be unsafe. Some harmful varieties closely resemble edible mushrooms, even to experienced foragers." Toxic mushrooms killing dogs in Santa Cruz County In a typical year, California sees fewer than five cases of wild mushroom poisonings statewide, health officials said. Between mid-November 2025 and the start of 2026, there have been dozens of poisonings in Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara, Santa Cruz and Sonoma counties. This undated photo provided by California Department of Health shows a Death Cap Mushroom. (California Department of Health via AP) Common toxic mushrooms that grow in California include death angel, death cap, and fly amanita. Cooking, boiling, freezing or drying toxic mushrooms will not make them safe to eat. ...read more read less