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Delphinium stachydeum

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About Spiked Larkspur (Delphinium stachydeum) Delphinium stachydeum is a species of larkspur known by the common name spiked larkspur. It is native to the Pacific Northwest and Great Basin of the United States, where it grows in sagebrush scrub and along the edges of mountain forest habitat where it meets prairie and plateau. It is a perennial herb producing at least one erect, slightly hairy stem generally exceeding a meter in height. The multilobed leaves are located mainly on the lower half of the stem except for the area just above ground level. The flower cluster is a branching array of usually more than 30 flowers, each held on a long pedicel. The flower has bright blue sepals around a centimeter long fringed with hairs and surrounding smaller, paler petals. The spur at the back of the flower is just over a centimeter in length.
Plant Description
Plant Type
Perennial herb

Max. Height
3.3 - 5 ft (1 - 1.5 m)

Flower Color

Native Status
Natural Setting
Site Type
Open places

Sun, Part Shade

Elevation ?
5845' - 9801'

Annual Precip. ?
14.5" - 37.3"

Summer Precip. ?
1.28" - 2.19"

Coldest Month ?
26.5° F - 32.6° F

Hottest Month ?
47.7° F - 57.4° F

Humidity ?
1.70 vpd - 14.21 vpd

Landscaping Information
Common uses
Hummingbird Gardens, Bee Gardens

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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