Ivesia longibracteata

Castle crags ivesia, Castle Crags Ivesia

Family: Rosaceae · Type: perennial · Native

Conservation status: CNPS 1B.3

Castle crags ivesia is a rare (CNPS 1B.3) California native perennial found in the eastern Klamath Ranges (Castle Crags) in granite crevices at elevations of 1,200 to 1,400 meters. Flowering from June to July, this plant produces white flowers in loosely clustered heads 10 to 20 millimeters wide. Growing with tufted green stems 3 to 12 centimeters tall, it forms a compact, ascending to erect plant with a short, slightly branched caudex. Its leaves are typically 2 to 4 centimeters long, with 4 to 6 leaflets on each side, each leaflet having 2 to 7 small oblanceolate lobes 2 to 6 millimeters long. The plant has distinctive ciliate leaf bases and produces small, pale fruits 1 to 1.5 millimeters long with slight venation.

Habitat: Granite crevices

Bloom period: Jun-Jul

Elevation: 1200-1400 m

Bioregions: e KR (Castle Crags).

California counties: Shasta, Siskiyou

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