Cirsium andrewsii: Natural History Summary and Research Recommendations
Strathmann KS. 2001. Cirsium andrewsii: Natural History Summary and Research Recommendations
Cirsium andrewsii, also known as Franciscan thistle, is a rare species endemic to the San Francisco Bay Area. It is in three locations on the coastal bluffs of the Presidio in San Francisco County, and in 23 locations in Marin County, including the Marin Headlands of the Golden Gate National Recreation Area, Point Reyes National Seashore. The document provides information on the plant's distribution, habitat associations, phylogenetic relationships, herbivory, life history, reproductive biology and potential threats. It also includes research recommendations to aid in species management.