The Tiburon paintbrush or Tiburon Indian paintbrush (''Castilleja neglecta'' syn. for ''Castilleja affinis'' subsp. ''neglecta'') is an
endangered taxon of flowering plant in the family
Orobanchaceae. It is
endemic to the
San Francisco Bay Area in
California in the United States, where it occurs in
Marin,
Napa, and
Santa Clara Counties.
[''Castilleja affinis'' ssp. ''neglecta''.]
NatureServe. 2012.
This plant is listed as threatened by the state of California
[State and Federally Listed Endangered, Threatened, and Rare Plants of California.]
California Department of Fish and Wildlife. July, 2013. and endangered by the United States government.
Tiburon paintbrush (''Castilleja affinis'' ssp. ''neglecta'').
Species Profile. United States Fish and Wildlife Service.[''Castilleja affinis'' subsp. ''neglecta'').]
USDA PLANTS.
Description
This plant is a perennial herb with a bristly green and purplish stem 15 to 60 centimeters tall. The lance-shaped leaves are 2 to 4 centimeters long and lobed or not. The inflorescence is up to 2.5 centimeters wide and has bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...
s in shades of yellow, sometimes to pink or reddish orange. The flowers are roughly 2 centimeters long and vary from green to purple with red or yellow margins.[''Castilleja affinis'' ssp. ''neglecta''.]
The Jepson Manual eFlora 2012.
The plant grows on serpentine soil
Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...
s below 300 meters in elevation.[
]
See also
* Rare species
* Endangered Species Recovery Plan
References
External links
CalPhotos
neglecta
Endemic flora of California
Natural history of the California chaparral and woodlands
Natural history of the California Coast Ranges
Natural history of the San Francisco Bay Area
Critically endangered flora of California
Tiburon, California
{{Orobanchaceae-stub