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High Mountain Larkspur Back to Plant Page
Delphinium polycladon

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About High Mountain Larkspur (Delphinium polycladon) Delphinium polycladon is a species of larkspur known by the common name mountain marsh larkspur. It is native to the High Sierra Nevada and the White and Inyo Mountains of eastern California and far western Nevada, where it grows in wet sites in the talus. It is a perennial herb producing one or more erect stems which easily exceed a meter in height but often remain dwarfed in high-elevation, exposed habitat with thin soils. The leaves are small and mostly located near the base of the plant. The inflorescence is a raceme of up to 35 flowers on long, S-shaped pedicels, often arranged along one side of the stem. The sepals are deep blue to purple, one to two centimeters long, and with a spur up to 2 centimeters in length.
Plant Description
Plant Type
Perennial herb

Max. Height
3.3 - 4.9 ft (1 - 1.5 m)

Flower Color

Native Status

Natural Setting
Elevation ?
494' - 12943'

Annual Precip. ?
6.5" - 70.7"

Summer Precip. ?
0.30" - 2.98"

Coldest Month ?
18.3° F - 48.4° F

Hottest Month ?
39.9° F - 74.1° F

Humidity ?
0.86 vpd - 24.01 vpd

Landscaping Information
Common uses
Hummingbird Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Mountain Marsh 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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