Eriophyllum jepsonii is a species of flowering plant in the aster family known by the common name Jepson's woolly sunflower. It is endemic to California, where it is known from the Central Coast Ranges and adjacent hills from Contra Costa to Ventura Counties. It grows in dry habitat such as chaparral and oak woodland. This is a small shrub producing woolly, whitish stems 50 to 80 centimeters tall. It is lined with lobed oval leaves each a few centimeters long and coated in woolly fibers. The flower cluster produces one or more flower heads containing many hairy or bristly yellowish disc florets and 6 to 8 yellow ray florets each up to a centimeter long. The fruit is an achene tipped with a pappus of approximately 8 scales.