This delicate five petaled flower was seen in the understory of an open canopy coastal Bishop pine forest. Its height is about 25 cm.
Sidalcea is a genus of the botanical family Malvaceae. It contains several species of flower known generally as checkerblooms or checkermallows, or prairie mallows in the United Kingdom. They can be annuals or perennials, some rhizomatous. They are native to West and Central North America.