Taxon Report

Castilleja affinis Hook. & Arn. var. neglecta (Zeile) J.M. Egger

Tiburon paintbrush

Print Report

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:	Castilleja neglecta Zeile Castilleja affinis ssp. neglecta

Ecology and Life History


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

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G4G5T1T2
State Rank:	S1S2
State List:	CT
Fed List:	FE
Other Status:	SB_CalBG/RSABG; SB_UCBG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	7
Element Occurrence Ranks:
Excellent (A)	2
Good (B)	4
Fair (C)	1
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
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)

Threat List Data from the CNDDB


Threat List Total:	9
EOs with Threat Listed:	Total EOs	% of EOs
	7	100 %
Non-native plant impacts	5	71%
Other	3	42%
Grazing	3	42%
Development	2	28%
Foot traffic/trampling	2	28%
ORV activity	2	28%
Feral pigs	1	14%
Landfill	1	14%
Mining	1	14%

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:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].