Conservation Program - Critical Habitat Campaign

Thread-leaved brodiaea - Brodiaea filifolia (Threatened)

Location: In 1998, 37 populations were known in southern California. 15 populations in the cities of Vista, San Marcos and Carlsbad in northern San Diego County. The remaining 22 populations are scattered within Orange, Los Angeles, Riverside, San Diego and San Bernardino counties.

Threats: residential development, agriculture, grazing and off-road vehicles. Hybridization with other more common Brodiaea’s caused by European honeybees.

• Draft Economic Analysis (PDF, 1.5 MB)
• Thread-leaved Brodiaea Draft CH (PDF, 1 MB)
• Final CNPS-CBD comments on Draft Economic Analysis - October 2005 (PDF, 115 Kb)
• Final CNPS-CBD comments on DCH - February 2005 (PDF, 163k)