Delphinium nuttallianum
(Nuttall's Larkspur)
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 1063
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 1071
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 0830
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 5620
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 5610
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 5499
Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 5505
Leaves, Delphinium nuttallianum, Lower Cataract Lake, Summit Co. 1069
| Scientific Name | Delphinium nuttallianum | USDA PLANTS Symbol | DENU2 |
| Common Name | Nuttall's Larkspur, Two-lobed Larkspur | ITIS Taxonomic Serial No. | 18483 |
| Family | Ranunculaceae (Buttercup) | SEINet Reference |
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| Description |
Life zones and habitat: Foothills and montane (5500 to 10800 ft.); meadows, open woodlands, sagebrush slopes.
Plant: Erect perennial with unbranched stems 4 to 16 inches tall, in colonies. Leaves: Basal and alternate lower stem leaves round in outline, deeply palmately-cleft into 5 to 12 segments that are further divided into narrowly-oblong or linear lobes. Inflorescence: Raceme of 4 to 18 (or more) blossoms, bluish-purple sepals and petals, rarely white (as in photos below) or pink; upper sepal has spur ~5/8-inch long extending rearward. Bloom Period: April to July. References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest and SEINet. |
BONAP Distribution Map Map Color Key | Colorado Status: Native |
© Tom Lebsack 2025
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains
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