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Ceanothus ferrisiae

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Ceanothus ferrisiae
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Ceanothus
Species:
C. ferrisiae
Binomial name
Ceanothus ferrisiae

Ceanothus ferrisiae (sometimes spelled ferrisae[1]) is a rare species of shrub in the family Rhamnaceae. Its common name is coyote ceanothus.

Description

Ceanothus ferrisiae grows erect to a maximum height approaching two meters. The woody parts are reddish in color when new and age gray. The evergreen leaves are oppositely arranged and measure up to 3 centimeters long. They are firm, flat, and generally toothed along the edges. The upper surface is hairless and deep green and the underside is paler in color and fuzzy in texture. The inflorescence is a small cluster of white flowers which bloom in the winter. The fruit is a rough, horned capsule just under a centimeter wide.

Distribution

Ceanothus ferrisiae is endemic to Santa Clara County, California, where it is known from only four or five occurrences near Mt. Hamilton in the Diablo Range.[2] The largest population, located near Anderson Dam, is recovering from a 1992 wildfire that killed 95% of the plants.[3] It is a member of the serpentine soils endemic flora and it occurs in chaparral. It is a federally listed endangered species.[3]

Conservation

There are about 6000 individuals remaining in five occurrences.[4] The plant is threatened by loss and degradation of its habitat, which is being cleared for construction and used for dumping.[3] The species also seems to have low recruitment.[3]

References

  1. ^ USFWS Species Profile: C. ferrisae
  2. ^ California Native Plant Society Rare Plants Profile
  3. ^ a b c d USFWS. Determination of endangered status for ten plants... from serpentine habitats in the San Francisco Bay Region of California. Federal Register February 3, 1995.
  4. ^ The Nature Conservancy
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