Agaricus arvensis, horse mushroom-coarse edible mushroom with a hollow stem and a broad white cap. Agaricus campestris, field mushroom, meadow mushroom-common edible mushroom found naturally in moist open soil; the cultivated mushroom of commerce.garicus campestris, field mushroom, meadow mushroom-common edible mushroom found naturally in moist open soil; the cultivated mushroom of commerce.
Summer Fun on the River ... Regional Parks presents the Russian River Festival, 31 days of outdoor adventure on Sonoma County's summer playground. Throughout July, we will be sharing all the cool ways you can explore and enjoy the Russian River.
From there the Russian River flows south, past Ukiah and Hopland, and crosses into Sonoma County just north of Cloverdale. Closely paralleled by U.S. Route 101, it descends into the Alexander Valley, where it is joined by Big Sulphur Creek. It flows south past Cloverdale, Asti, and Geyserville.