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Delphinium glaucum
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Glaucus Larkspur
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Delphinium glaucum
  

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About Glaucus Larkspur (Delphinium glaucum) Delphinium glaucum is a species of larkspur known by the common names Sierra larkspur, mountain larkspur, and waxy pale larkspur. This wildflower is native to western North America from Arizona to Alaska. It grows in moist mountainous environments, such as riverbanks and meadows. This plant sprouts one to several tall, stout, pale green erect stems which may approach three meters in height. The lobed leaves are generally found only at the base of the plant. The top of the stem is a large flower cluster which may itself be over a meter long. It usually contains over fifty widely spaced flowers, with each flower on a pedicel a few centimeters long. The sepals are flat and extend to the sides or point forward. The sepals and petals are dark blue to deep purple, although the top two petals may be lighter in color to almost white. They may be somewhat wrinkly. The spur is about two centimeters long.
Plant Description
Plant Type
Perennial herb

Max. Height
3.3 - 8 ft (1 - 2.4 m)

Form
Upright

Growth Rate
Fast

Flower Color
Purple, Blue

Flowering Season
Spring
Spring
Summer
Fall
Winter


Native Status
Native

Natural Setting
Site Type
Wet thickets, streamsides

Sun
Shade, Part Shade

Elevation ?
769' - 12226'

Annual Precip. ?
6.6" - 129.0"

Summer Precip. ?
0.17" - 4.32"

Coldest Month ?
22.9° F - 51.9° F

Hottest Month ?
43.5° F - 77.5° F

Humidity ?
0.88 vpd - 25.43 vpd

Soil Description
Adaptable, tolerant of sand, loam and clay

Sunset Zones ?
1, 2, 3, 4, 5, 6

Landscaping Information
Common uses
Hummingbird Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Waxy Pale Larkspur, Sierra Larkspur, Mountain 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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