Taxon Report

Ceanothus foliosus Parry var. vineatus McMinn

Vine Hill ceanothus

Print Report

Taxon Summary

Ceanothus foliosus var. vineatus, commonly known as Vine Hill ceanothus, is a perennial evergreen shrub in the Rhamnaceae that is found only in California. It occurs within Chaparral, growing at elevations from 45 to 305 meters. Ceanothus foliosus var. vineatus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification


Scientific Name:	Ceanothus foliosus Parry var. vineatus McMinn
Common Name:	Vine Hill ceanothus
Family:	Rhamnaceae
Element Code:	PDRHA040D6
USDA Plants Symbol:	CEFOV
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen shrub
Blooming Period: Mar-May	Mar-May
Elevation:	45-305 (150-1000)
General Habitats:	Chaparral
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.1
Global Rank:	G3T1
State Rank:	S1
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	6
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	1
Poor (D)	0
None (X)	0
Unknown (U)	5

Location


California Endemic: True
California Counties and Islands: Name (Code)
Mendocino (MEN)*, Sonoma (SON)
Quads: Name (Quad Code)
Camp Meeker (3812248), Leggett (3912376), Noble Butte (3912386), Sebastopol (3812247), Tan Oak Park (3912375)

Threat List Data from the CNDDB


Threat List Total:	3
EOs with Threat Listed:	Total EOs	% of EOs
	2	33 %
Road/trail construction/maint.	2	33%
Wood cutting or brush clearing	1	16%
Other	1	16%

Notes



Nearly extirpated in SON Co.; confirmed from only two occurrences. Known from one historical occurrence in MEN Co., but unable to relocate; need quads.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].