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Caulanthus amplexicaulis
  

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About (Caulanthus amplexicaulis) Caulanthus amplexicaulis is a species of flowering plant in the mustard family known by the common name claspingleaf wild cabbage. It is endemic to California, where it grows on open slopes in the Transverse Ranges and Outer South California Coast Ranges. Caulanthus amplexicaulis is annual herb produces a slender erect stem with flat, oval leaves clasping it toward the base. The bulbous purple flower forms a rounded pouch which opens at the top, the narrow petal tips reflexed back. The outer petal tips are deep purple, the inner much lighter to nearly white. The fruit is a very long silique which may exceed 10 centimeters in length. Varieties: There are two varieties of this species. Caulanthus amplexicaulis var. barbarae - Santa Barbara jewelflower; endemic to the serpentine soils of the San Rafael Mountains in central Santa Barbara County. The sepals forming the rounded pouch of the flower are white to cream in color as opposed to the bright purple of the more common variety. Caulanthus amplexicaulis var. amplexicaulis - endemic to the Transverse Ranges.
Plant Description
Plant Type
Annual herb

Native Status
Native

Natural Setting
Elevation ?
851' - 10045'

Annual Precip. ?
6.5" - 52.4"

Summer Precip. ?
0.14" - 2.66"

Coldest Month ?
29.4° F - 52.0° F

Hottest Month ?
52.1° F - 79.4° F

Humidity ?
1.85 vpd - 28.80 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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