Erigeron petrophilus, commonly known as rockloving erigeron or cliff fleabane, is a perennial herb native to rocky outcrops and cliff faces within mixed coniferous forests in California and southwestern Oregon, often found on serpentine soils. It typically forms clumps reaching up to 2 feet in height and width. The plant has a woody caudex from which many hairy, glandular stems arise, and it is adorned with narrow, oblong leaves that cluster at the base and along the stems. The inflorescence consists of several small flower heads, each with yellow disc florets but no ray florets, and each head is just over a centimeter wide. The flowers bloom in late spring to early summer and are attractive to a variety of pollinators.

Rockloving erigeron is valued for its ability to thrive in challenging conditions, such as rocky or serpentine soils, where other plants may struggle. It is often used in rock gardens, native plant landscapes, and restoration projects for its adaptability and low maintenance. This species prefers well-drained soils and can tolerate drought once established, making it suitable for xeriscaping. It requires full sun to part shade and is generally free from major pests and diseases. However, it may be susceptible to root rot if overwatered or planted in poorly drained soils.CC BY-SA 4.0