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Chaparral Harebell
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Campanula exigua
  

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About Chaparral Harebell (Campanula exigua) The annual flower of the bluebell family Campanula exigua has several common names, including chaparral bellflower, rock harebell, and Rattan campanula. It is a rare plant endemic to California and is found in a few isolated spots around Mount Diablo State Park in the east Bay Area. It grows out of rocky and gravel soils, sending up several long stems filled with milky sap and bearing sparse, tiny leaves. At the end of each stem grows a bell-shaped bright blue-violet flower. As its common name suggests, chaparral bellflower is a member of the chaparral ecosystem, where it grows amongst many other endemic shrubs on dry, fire-prone hillsides. It is one of few plants which thrives in serpentine soils.
Plant Description
Plant Type
Perennial herb

Native Status
Natural Setting
Elevation ?
264' - 4151'

Annual Precip. ?
9.9" - 28.2"

Summer Precip. ?
0.21" - 0.69"

Coldest Month ?
43.9° F - 51.0° F

Hottest Month ?
62.7° F - 75.2° F

Humidity ?
2.17 vpd - 22.71 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available


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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