Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Localities documented in Tropicos sources

Ceanothus arboreus Greene:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Global Range: Ceanothus arboreus occurs on Santa Cruz Island and Santa Catalina, of the Channel Islands of California (Junak et al. 1995).

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Ceanothus arboreus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Ceanothus arboreus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N3 - Vulnerable

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NatureServe Conservation Status

Rounded Global Status Rank: G3 - Vulnerable

Reasons: Ceanothus arboreus is endemic to Santa Cruz island and Santa Catalina (Channel Islands), California. It occurs on rocky slopes, exposed ridgetops, floodplains; chaparrel, pine forest. While it is endemic to the Channel Islands, it is common elsewhere it occurs (Junak et al. 1995).

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Wikipedia

Ceanothus arboreus

Ceanothus arboreus is a species of shrub endemic to California, especially to the Channel Islands. It is known commonly as feltleaf ceanothus. It is a species of what are sometimes called California lilacs, and may be referred to as the California mountain lilac or island mountain lilac.

Description[edit]

Ceanothus arboreus is a spreading bush growing up to 6 metres (20 ft) in height, bearing glossy dark green leaves which are leathery or felt-like on their undersides. It is sometimes planted as a fast-growing ornamental for its showy bright blue flowers, which grow in plentiful panicles, or bunches, of tiny five-lobed blossoms. Some varieties and cultivars have light, powder blue blooms, and others bear darker blue flowers. The fruits are three-lobed, triangular capsules.

Cultivation[edit]

'Ceanothus arboreus is cultivated as an ornamental plant. As a native of dry California, the plant is drought-tolerant and may be found in chaparral ecosystems.

Numerous cultivars have been selected for garden use, of which 'Trewithen Blue' has gained the Royal Horticultural Society's Award of Garden Merit.[2]

References[edit]

  1. ^ C. arboreus was first described and published in Bulletin of the California Academy of Sciences, 2(6): 144. 1886. "Plant Name Details for Ceanothus arboreus". IPNI. Retrieved August 22, 2010. 
  2. ^ "RHS Plant Selector - Ceanothus arboreus 'Trewithen Blue'". Retrieved 26 June 2013. 
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Names and Taxonomy

Taxonomy

Comments: Kartesz (1999) does not recognize the existence of varieties, however, USFWS has designated Ceanothus arboreus var. glaber as a candidate for listing (9/93).

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