CNPS

CNPS Rare Plant Inventory

Species Details

Castilleja affinis var. neglecta

Tiburon paintbrush

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  Classification

Scientific Name:
Castilleja affinis Hook. & Arn. var. neglecta (Zeile) J.M. Egger
Common Name:
Tiburon paintbrush
Family: Orobanchaceae
Element Code: PDSCR0D013
USDA Plants Symbol:
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: FE (1995-02-03)
State List: CT (1990-01-01)
Global Rank: G4G5T1T2
State Rank:
 S1S2
Other Status: SB_CalBG/RSABG; SB_UCBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-05-26

  Ecology and Life History

Lifeform: perennial herb (hemiparasitic)
Blooming Period: Apr-Jun
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Elevation:
60 - 400 meters
195 - 1310 feet
General Habitats:
  • Valley and foothill grassland (serpentinite)
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Threatened by development, gravel mining, grazing, and non-native plants. See C. affinis ssp. neglecta in TJM 2. See Phytologia 90(1):63-81 (2008) for revised nomenclature.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 9
Total EOs % of EOs
EOs with Threat Listed: 7 100 %
THREAT LIST:
Non-native plant impacts 5 71%
Other 3 42%
Grazing 3 42%
Development 2 28%
Foot traffic/trampling 2 28%

  Occurrence Data from the CNDDB

Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
2 4 1 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 7
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Marin (MRN), Napa (NAP), Santa Clara (SCL)
Quads: Name (Quad Code)
Cordelia (3812222), Morgan Hill (3712126), San Geronimo (3812216), San Quentin (3712284)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2023. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 22 September 2023].