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''Ceanothus gloriosus'' is a species of
shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...
in the family
Rhamnaceae The Rhamnaceae are a large family of flowering plants, mostly trees, shrubs, and some vines, commonly called the buckthorn family. Rhamnaceae is included in the order Rosales. The family contains about 55 genera and 950 species. The Rhamnaceae h ...
known by the common name Point Reyes ceanothus. It is endemic to California, where it is known from the coastline of the San Francisco Bay Area and areas north and south. It grows on seaside bluffs and the slopes of the coastal mountains. This shrub grows flat and spreading to erect, approaching two meters in maximum size. The evergreen leaves are oppositely arranged and up to 5 centimeters long, rounded to oval in shape. The edges are toothed, the teeth sometimes spine-tipped. The inflorescence is a small cluster of bright blue to purple flowers. The fruit is a horned capsule about 4 millimeters wide. There are three varieties of this species: *''C. g.'' var. ''exaltatus'' (glory bush) - found north of the Bay Area *''C. g.'' var. ''gloriosus'' (glory mat) - smaller mat-forming variety known mainly from
Marin County Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is acros ...
*''C. g.'' var. ''porrectus'' (Mt. Vision ceanothus) - rare variety endemic to Marin County in the vicinity of Point Reyes


Cultivation

The species, varieties, and cultivars are widely grown by the horticulture industry, and used in gardens and native plant landscaping.


References


External links


Jepson Manual TreatmentUSDA Plants ProfilePhoto gallery
gloriosus Endemic flora of California Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the San Francisco Bay Area Plants described in 1937 Taxa named by John Thomas Howell Garden plants of North America Drought-tolerant plants Flora without expected TNC conservation status {{Rhamnaceae-stub