CAUTION: Post Storm Damage to Coastal Trail
The Presidio Coastal Trail segment just north of the Pacific Overlook and adjacent to Lincoln Blvd remains CLOSED indefinitely. We have posted signage to alert bicyclists and hikers and with information for safe trail alternatives. More »
Marin Dwarf Flax
3. Occurrence limited to one or a few highly restricted populations or present in such small numbers that it is seldom reported.
Family: Flax (Linaceae)
Habitat: Serpentine bluffs and grasslands and openings in serpentine scrub. At the Presidio this species is found on the serpentine bluffs.
General Distribution: Marin, San Francisco and San Mateo Counties. Fewer than 20 sites known. Only one site remains at the Presidio.
Description: This small annual species is four to eight inches tall, has a slender threadlike stem and linear leaves. The flowers are small with five rose to whitish petals and form congested, flat-topped clusters. Blooming time is from May to July.
Monitoring and Activities: Populations of this species are declining, and the species may soon be lost from the Presidio if recent trends are not reversed. Click to see graph of population changes.
Did You Know?
French Marshal Ferdinand Foch, supreme commander of the allied forces during World War I, visited Crissy Field in 1921 and declared it "The last word in airfields."