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Dudleya traskiae
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Santa Barbara Island Live Forever
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Dudleya traskiae
  

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About Santa Barbara Island Live Forever (Dudleya traskiae) Dudleya traskiae is a rare succulent plant known by the common name Santa Barbara Island liveforever. This dudleya is endemic to Santa Barbara Island, one of the Channel Islands of California, where it grows on rocky bluffs. The plant has a basal rosette of flat, spade-shaped fleshy leaves up to 15 centimeters long, which are pale green to yellowish. It erects tall stems bearing dense, rounded flower clusters of many bright yellow flowers. Dudleya traskiae is a perennial succulent herb with foliage leaves in a basal rosette. The plants are evergreen, with a branched primary stem (caudex) and are composed of one to several hundred rosettes. The branching of the stem is dichotomous. The rosette leaves number 25-35, are strap-shaped - oblance-shaped to subacuminate and are 4-15 centimeter long and 1-4 centimeter wide. Leaves may be green or waxy pale with a waxy covering. The flowering stems are axillary and flowering is indeterminate in paniculate or cymose clusters. The petals (5) are bright yellow, often with red veins, fused below and curving outward in the upper half. Stamens (10) are borne on the corolla tube. The fruit is composed of 5 carpels that are spreading in age, 7-8 millimeter long. Seeds are many and minute, narrow and pointed. Dudleya traskiae is tetraploid with a chromosome number of 34. Flowering most commonly occurs from May-July, although flowering may begin as early as mid-February.
Plant Description
Plant Type
Perennial herb, Succulent

Max. Height
3 - 6 in (7.6 - 15.2 cm)

Max. Width
6 - 12 in (15 - 30cm)

Form
Rounded

Growth Rate
Moderate

Dormancy
Evergreen

Leaves
Leaves are pale green, thick/fleshy and form a basal rosette. They are generally smooth and sometimes have a waxy covering and are 4-6 mm thick, 4-15 cm long, and 1-4 cm wide. They are oblong-oblanceolate shaped.

Flower Color
Yellow, Red

Flowering Season
Spring, Summer, Winter
Spring
Summer
Fall
Winter


Native Status
Natural Setting
Site Type
This plant is very rare and is only found on the rocky steep slopes of Santa Barbara Island.

Sun
Part Shade, Sun

Elevation ?
105' - 452'

Annual Precip. ?
12.0" - 12.0"

Summer Precip. ?
0.25" - 0.25"

Coldest Month ?
55.8° F - 57.2° F

Hottest Month ?
64.8° F - 67.4° F

Humidity ?
1.57 vpd - 10.21 vpd

Soil Description
Occurs on a variety of soils ranging from loamy to gravelly or rocky and clay

Soil Texture
Loamy Sand, Sand

Drainage
Fast, Medium

Companion Plants
Consider using other plants common to the natural habitat of this Dudleya, such as cholla (Cylindropuntia prolifera), prickly pear (Opuntia littoralis), boxthorn (Lycium californicum), and Santa Barbara Island Buckwheat (Eriogonum giganteum ssp. compactum).

Wildlife Attracted
Rodents may prey on the seeds.

Landscaping Information
Ease of Care
Very Easy

Water Requirement ?
Very Low
Extremely Low
Very Low
Low
Moderate - High


Max. Summer Water ?
1x/month
No Summer Water
1x/month
2x/month
3x/month
1/week
Keep moist


Propagation ?
For propagating by seed: No treatment.

Common uses
Bird Gardens, Hummingbird Gardens

Nursery Availability
Commonly Available

Other Names
Common Names
Santa Barbara Island Liveforever


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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