[explorer.natureserve.org] Range, Threatened status: California endemic occuring in the eastern part of the Transverse Ranges in the eastern San Bernardino Mountains, San Bernardino County (FNA 2009). Estimated Number of Element Occurrences: > 300 Degree of Threat: High - medium Threat Comments: Plant is found in southern California, and although some may be on public lands, others may be either already extirpated or under threat of extirpation especially due to development. (link added by Mary Ann Machi)