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.