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).

[2] It is a common member of the flora in several types of habitat in the mountains, foothills, and valleys.

Calycadenia fremontii produces a rigid, erect, hairy stem reaching a top height anywhere between 10 centimeters (2 inches) and one meter (40 inches).

The leaves are linear in shape and arranged alternately along the stem, especially on the lower part.

The inflorescence bears one or more glandular flower heads, each with 2 to 6 three-lobed ray florets in shades of white to red to yellow, and up to 20 disc florets at the center.