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Island Redberry
Rhamnus pirifolia
  
About Island Redberry (Rhamnus pirifolia) 1 Nurseries Carry This Plant Rhamnus pirifolia is a species of tree and shrub in the buckthorn family known by the common name island redberry. It is an island endemic which is known only from the Channel Islands of California and Guadalupe Island off Baja California. Its habitat consists of coastal sage scrub and chaparral. Rhamnus pirifolia is a spreading shrublike tree which approaches 10 meters-30 feet in maximum height. It has gray bark on its branches and the young twigs are purple in color. The thick evergreen leaves are oval in shape with pointed or nearly rounded tips, measuring 2 to 4 centimeters long. The edges are smooth or toothed and curve under, making the leaves concave. The inflorescence is a solitary flower or umbel of up to six flowers. The flower has four pointed sepals and no petals. The fruit is a drupe which ripens to bright red. It is just under a centimeter wide and contains two seeds.
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
32.8 ft tall

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
Yellow, Cream, Red

Wildlife Supported
 


Landscaping Information
Nurseries
Nurseries

Common uses
Common uses
Bank Stabilization, Bird Gardens

Natural Setting
Climate
Climate
Annual Precipitation: 8.7" - 31.5", Summer Precipitation: 0.14" - 1.16", Coldest Month: 46.0" - 57.2", Hottest Month: 63.0" - 77.2", Humidity: 1.01" - 23.31", Elevation: 7" - 3410"


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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