Sidalcea ranunculacea is a species of flowering plant in the mallow family known by the common name marsh checkerbloom and marsh checker mallow.

It grows in the Southern Sierra Nevada and Greenhorn Mountains at 1,820–3,050 metres (5,970–10,010 ft) in elevation.

Sidalcea ranunculacea is a rhizomatous perennial herb reaching up to 0.5 metres (1.6 ft) tall.

The fleshy lobed leaf blades also have hairs and bristles.

Each flower has five pink to purple petals up to 1.5 centimeters long.