Aspidotis carlotta-halliae

Carlotta hall's lace fern, Carlotta Hall's Lace Fern, Carlotta Hall's lace fern, Carlotta Hall's lace fern

Family: Pteridaceae · Type: perennial · Native

Conservation status: CNPS 4.2

Carlotta hall's lace fern is a California native perennial fern found in central western California on serpentine slopes, crevices, and outcrops at elevations of 100 to 1,400 meters. This delicate fern features a complex, leathery leaf structure that is 3-pinnate and typically 8 to 15 centimeters long, with finely dissected pinnae that create an intricate lace-like appearance. Growing with slender, ascending fronds, the fern develops narrow lanceolate to triangular leaf segments with few distinctive teeth. Its leaves are characterized by pinnately dissected segments with small, sparse teeth, creating a delicate and intricate green foliage. The sporangia are notable for their false indusia that are approximately as wide as or wider than long, typically with 3 to 5 segments per section.

Habitat: Generally serpentine slopes, crevices, outcrops

Elevation: 100-1400 m

Bioregions: CW.

California counties: Marin, Monterey, San Luis Obispo, Butte, San Benito, Alameda, Santa Clara

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