Crocanthemum greenei

Island rush-rose, Island Rush-Rose

Family: Cistaceae · Type: perennial · Native

Conservation status: CNPS 1B.2 · Threatened

Island rush-rose is a rare (CNPS 1B.2) California native perennial found in the Channel Islands on dry, rocky slopes and ridges in chaparral at elevations below 500 meters. Flowering from April to May, this plant produces yellow flowers with delicate petals 5 to 8 millimeters long in small clusters. Growing with erect green stems 15 to 68 centimeters tall, it forms a compact clump with multiple branching stems. Its leaves are small, narrow, and mostly 7 to 25 millimeters long with margins that do not curl under, creating a delicate green texture. The flower is distinguished by its distinctive sepals, with outer sepals 2.5 to 4 millimeters long and inner sepals 4.5 to 8 millimeters long, giving the plant an intricate floral structure.

Habitat: Dry, rocky slopes, ridges in chaparral

Bloom period: Apr-May

Elevation: < 500 m

Bioregions: ChI.

California counties: Los Angeles, Santa Barbara

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.