Search / Plant Profile / Ceanothus confusus

Plant Profile

Rincon Ridge Ceanothus (Ceanothus confusus)

Global Rank: G1 - Critically Imperiled
Legal Status: N/A
Family: Rhamnaceae
State: CA
Nature Serve ID: 133578
Lifeform: Subshrub, Shrub
Date Inducted in National Collection:

Description:

Ceanothus confusus is a species of shrub in the buckthorn family Rhamnaceae known by the common name Rincon Ridge ceanothus. It is endemic to northern California where it grows in the coastal mountains north of the San Francisco Bay Area. Its habitats include coniferous forest, woodland, and chaparral. This is a low, spreading shrub often forming a short mat up to about 1. 2 meters wide. The stem is gray-brown with new twigs having a reddish color and fuzzy texture. The evergreen leaves are oppositely arranged. Each is up to 2 centimeters long and oval in shape with 3 to 5 large teeth. The upper surface is shiny green and the underside is paler and feltlike in texture with hairs along the veins. The inflorescence is a small cluster of blue or purple flowers. The fruit is a horned capsule about half a centimeter wide. [CNPS: Calscape]

Where is Rincon Ridge Ceanothus (Ceanothus confusus) located in the wild?

Habitat:

Ceanothus confusus prefers Chaparral, Foothill Woodland, and Closed-cone Pine Forest habitats.

Distribution:

There are approximately 30 Ceanothus confusus plants located in the following counties of California: Lake, Mendocino, Napa and Sonoma. [CNPS]

States & Provinces:

Rincon Ridge Ceanothus can be found in California

Which CPC Partners conserve Rincon Ridge Ceanothus (Ceanothus confusus)?

Santa Barbara Botanic Garden

Not Sponsored

Conservation Actions

Assigned 06/13/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden holds 1 accessions of Ceanothus confusus in orthodox seed collection. There are as many as 50 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden has collected 1 seed accessions of Ceanothus confusus from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 10 maternal plants