|Scientific Name||Delphinium geyeri||USDA PLANTS Symbol||DEGE2|
|Common Name||Geyer's Larkspur||ITIS Taxonomic Serial No.||18555|
Life zones and habitat: Plains and foothills (5000 to 7500 ft.); dry, sandy or rocky hillsides and sagebrush slopes.
Plant: Erect perennial with unbranched stems 8 to 28 inches tall; minutely hairy stems; growing in colonies.
Leaves: Basal and stem leaves with light green blades, overall roundish in outline, 3/8 to 2 inches across, deeply palmately-cleft into multiple, narrow, densely pubescent segments, tips tapering to a point; basal leaves have wider lobes than stem leaves.
Inflorescence: Raceme of 6 to 30 (or even more) blossoms; 5 bright blue spreading sepals, 3/8 to almost 3/4-inch long and 4 shorter bright blue petals that may have a whitish tinge, the upper two petals (or the sepals) extending backward to form a spur; the spur is straight or slightly bent downward and 3/8 to 3/4-inch long; multiple stamens and yellow-brownish anthers partially obscured by lower petals.
Bloom Period: June and July.
References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America and Montana Field Guide.
Note: Toxic to livestock (cattle and horses, especially) and is often eradicated in pasturelands.
|BONAP Distribution Map
Map Color Key
© Tom Lebsack 2023
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County