Calycadenia fremontii is a species of flowering plant in the daisy family known by the common name Frémont's western rosinweed (after John C. Frémont). It is native to southwestern Oregon (Josephine + Jackson Counties) and northern California (mostly north of Napa and Placer Counties but with a few isolated populations in Santa Clara and Tuolumne Counties). It is a common member of the flora in several types of habitat in the mountains, foothills, and valleys. This annual plant is variable in appearance.