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Island Wallflower
Erysimum insulare
  
2 Nurseries Carry This Plant

About Island Wallflower (Erysimum insulare) 2 Nurseries Carry This Plant Erysimum insulare is a species of wallflower known by the common name island wallflower. It is endemic to coast of southern California, including the Channel Islands, where it grows on coastal bluffs and sand dunes. This is a perennial herb or subshrub producing a branching, erect stem 5 to 60 centimeters tall. It is lined with many hairy leaves which are linear to widely lance-shaped. The longest leaves near the base of the stem may be up to 15 centimeters long. The top of the stem is occupied by a raceme flower cluster of many bright yellow to yellow-orange flowers. The fruit is a silique up to 10 centimeters long. There are two subspecies of this plant, most individuals belonging to ssp. suffrutescens. The rare ssp. insulare is limited to three of the Channel Islands.
Plant Description
Plant Type
Plant Type
Perennial herb, Annual herb

Size
Size
0.16 - 2 ft tall

Flower Color
Flower Color
Yellow, Orange

Wildlife Supported
 


 
Butterflies & moths hosted ( 1 likely * ) SHOW ALL
*
Anthocharis sara Image
Sara Orangetip Anthocharis saraAnthocharis sara

Landscaping Information
Nurseries
Nurseries
Carried by 2

Common uses
Common uses
Deer Resistant, Butterfly Gardens

Propagation
Propagation?
For propagating by seed: No treatment.

Sunset Zones
Sunset Zones?
14, 15, 16, 17*, 22, 23, 24*

Natural Setting
Climate
Climate
Annual Precipitation: 11.8" - 34.5", Summer Precipitation: 0.15" - 0.40", Coldest Month: 47.8" - 56.7", Hottest Month: 61.2" - 71.7", Humidity: 0.87" - 17.81", Elevation: -6" - 2102"


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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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