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Laguna Mountains Jewelflower
Streptanthus bernardinus
About Laguna Mountains Jewelflower (Streptanthus bernardinus) 0 Nurseries Carry This Plant Streptanthus bernardinus is a species of flowering plant in the mustard family known by the common name Laguna Mountains jewelflower, or Laguna Mountain jewelflower. It is native to southern California and northern Baja California, where it grows in the Transverse Ranges around Los Angeles and the Peninsular Ranges to the south, including the Laguna Mountains east of San Diego and the Sierra de Juarez and Sierra de San Pedro M rtir of Baja. Its habitat includes temperate coniferous forest and chaparral on mountain slopes. Streptanthus bernardinus is a perennial herb growing from a woody caudex and producing an erect stem up to 60 to 80 centimeters tall. It is hairless and sometimes waxy in texture. The basal leaves are widely lance-shaped and up to 8 centimeters long by 2. 5 wide. They are borne on petioles. Narrower lance-shaped leaves occur higher on the stem and may clasp the stem at their bases. Flowers occur at intervals along the upper stem. Each has a bell-shaped calyx of greenish to yellow or white sepals just under a centimeter long. White petals emerge from the tip. The fruit is a thin, narrow silique which may be 8 to 12 centimeters in length or longer.
Plant Description
Plant Type
Plant Type
Perennial herb

2 - 2.6 ft tall

Flower Color
Flower Color
Yellow, White, Green

Wildlife Supported

Butterflies & moths hosted ( 1 confirmed , 6 likely * ) SHOW ALL

Landscaping Information
Natural Setting
Annual Precipitation: 3.3" - 51.2", Summer Precipitation: 0.30" - 2.87", Coldest Month: 32.6" - 53.7", Hottest Month: 58.3" - 82.9", Humidity: 1.92" - 34.59", Elevation: 474" - 9666"

Alternative Names
Common Names: Laguna Mountain Jewelflower, Laguna Mtns. Jewel-flower

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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