Delphinium species

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Scientific Name Delphinium barbeyi USDA PLANTS Symbol DEBA2
Common Name Subalpine Larkspur ITIS Taxonomic Serial No. 18539
Family Ranunculaceae (Buttercup) SEINet
Reference
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Description Life zones and habitat: Foothills to alpine (8000 to 12700 ft.); open areas in meadows, along streams and near ponds.
Plant: Erect perennial with leafy hollow stems up to 5 feet tall, in colonies.
Leaves: Stem leaves on petioles that are short or up to 5-1/2 inches long; large leaves, smooth and palmately-dissected into 5 to 9 segments, each segment then further divided.
Inflorescence: Elongated terminal raceme of 10 to 50 blossoms each connected to the stem via short pedicels; deep purple sepals surrounding petals with white edges; upper sepal has spur extending rearward, 3/8 to 3/4-inch long.
Bloom Period: July to September.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel and SEINet.
BONAP Distribution Map

Colorado Status:
Native
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, www.americansouthwest.net and SEINet.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2020