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Delphinium glaucum S. Watson
Sierra larkspur, Tower larkspur
Synonym(s): Delphinium brownii, Delphinium scopulorum, Delphinium scopulorum var. glaucum
USDA Symbol: DEGL3
Rising from a woody rootstock, the stout, leafy stems of this perennial reach 3-6 ft. in height. Leaves are palmately divided and toothed becoming gradually smaller up the stem. Both the leaves and the stems have a grayish, waxy covering. Densely flowered racemes are up to 16 in. long and are made up of spurred, blue-purple flowers.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf:
Fruit: Size Class:
Bloom InformationBloom Color: Blue , Purple
Bloom Time: Jul , Aug , Sep
, WY Canada: AB Native Distribution:
Mts. from AK
to Madera Co., CA,
e. to the Rockies Native Habitat:
Wet, subalpine to alpine meadows & stream banks
Growing ConditionsWater Use: High
Light Requirement: Part Shade
Soil Moisture: Moist , Wet
CaCO3 Tolerance: Medium
Soil Description: Wet or moist soils.
Birds, Hummingbirds, Butterflies Warning:
Plants of the genus
Delphinium contain toxins, and no parts of them should ever be eaten. They can be fatally poisonous to both humans and animals. Sensitivity to a toxin varies with a personís age, weight, physical condition, and individual susceptibility. Children are most vulnerable because of their curiosity and small size. Toxicity can vary in a plant according to season, the plantís different parts, and its stage of growth; and plants can absorb toxic substances, such as herbicides, pesticides, and pollutants from the water, air, and soil. Conspicuous Flowers:
Birds , Hummingbirds
PropagationDescription: Sow fresh seeds in fall for outdoor stratification.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Record Last Modified: 2007-01-01
Research By: TWC Staff