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Delphinium hansenii
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Hansen's Larkspur
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Delphinium hansenii

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About Hansen's Larkspur (Delphinium hansenii) Delphinium hansenii is a species of larkspur known by the common names Eldorado larkspur and Hansen's delphinium. It is endemic to California, where it grows in mountains, valleys, and desert from the southern Cascade Range to the Mojave Desert. This wildflower usually grows between one half and one meter in height, although it can grow much taller. The deeply lobed leaves are hairy, especially on the undersides. The flower cluster has usually over 25 flowers grouped close together at the top of the stem and held on long pedicels. The flowers are white to light blue or light pink, or bicolored, and vary in size. The inner petals may be quite hairy.
Plant Description
Plant Type
Perennial herb

Max. Height
1.6 - 6 ft (0.49 - 1.8 m)

Flower Color
White, Pink, Blue

Native Status

Natural Setting
Site Type
Open places

Sun, Part Shade

Elevation ?
10' - 11596'

Annual Precip. ?
5.2" - 71.5"

Summer Precip. ?
0.17" - 1.98"

Coldest Month ?
21.6° F - 54.7° F

Hottest Month ?
42.8° F - 80.8° F

Humidity ?
0.64 vpd - 33.76 vpd

Landscaping Information
Common uses
Hummingbird Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Hansen's Delphinium, Eldorado Larkspur

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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