Erigeron reductus is a species of flowering plant in the family Asteraceae known by the common name lesser California rayless fleabane.

[3] Erigeron reductus grows in rocky habitats in several mountain ranges in the northern part of the state.

It is a perennial herb producing several spreading to erect stems up to 30 centimeters (12 inches) long from a woody caudex and root system.

Each stem is lined evenly with small, thready leaves and topped with an inflorescence of one or more flower heads.

[2] The two varieties do intergrade in their region of overlap (Trinity County).