Sidalcea robusta is an uncommon species of flowering plant in the mallow family known by the common name Butte County checkerbloom. Sidalcea robusta is endemic to Butte County, California, where it is known from about 20 occurrences, including some near Chico. It is a resident of chaparral and woodland habitat in mountain foothills. It is an Endangered species listed by the California Native Plant Society Inventory of Rare and Endangered Plants and The Nature Conservancy.
Sidalcea robusta
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