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.
The Russian River runs southward from northern California, turning west through Sonoma County toward the sea. The small towns on and near the Russian River are some of the cutest in this part of California-and each has a distinct personality. Pick up a map of the Russian River Wine Road at local businesses or on their website. 2  We especially like sparkling wine maker Korbel for their great tour, historic property and beautiful gardens. 3  Bicycling: Sonoma County Bike Trails to plan your route, or stop in a local bike shop for advice.