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Tiburon Paintbrush Back to Plant Page
Castilleja affinis ssp. neglecta

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About Tiburon Paintbrush (Castilleja affinis ssp. neglecta) The Tiburon paintbrush or Tiburon Indian paintbrush (Castilleja neglecta syn. for Castilleja affinis spp. neglecta) is an endangered taxon of flowering plant in the broomrape 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. This plant is listed as threatened by the state of California and endangered by the United States government. 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 bracts 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. The plant grows on serpentine soils below 300 meters in elevation.
Plant Description
Plant Type
Perennial herb, Annual herb

Max. Height
0.49 - 2 ft (0.15 - 0.6 m)

Flower Color
Yellow, Pink, Red

Native Status

Natural Setting
Elevation ?
7' - 789'

Annual Precip. ?
23.3" - 40.7"

Summer Precip. ?
0.26" - 0.47"

Coldest Month ?
47.6° F - 49.6° F

Hottest Month ?
64.5° F - 70.3° F

Humidity ?
1.30 vpd - 15.26 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Tiburon Indian Paintbrush

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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