Delphinium nuttallianum

Delphinium nuttallianum is a species of larkspur known by the common names twolobe larkspur, Nuttall's larkspur, and common larkspur.[1] It is widely distributed across western North America from California to Alberta, including mountain meadows and the majority of the sagebrush steppe, except very dry areas.[1]

Not to be confused with Delphinium nuttallii.

Delphinium nuttallianum
Delphinium nuttallianum in Wenas Wildlife Area
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Delphinium
Species:
D. nuttallianum
Binomial name
Delphinium nuttallianum
Pritz. ex Walp.
Synonyms
  • Delphinium nelsonii
  • D. sonnei

The roots vary from thin to thick.[1] The plant has a white to pink erect stem usually not exceeding half a meter in height, which may branch several times. Deeply lobed leaves are located mostly about the base of the plant. The inflorescence occupying the top end of the stem has a few widely spaced flowers on long pedicels. The sepals are long and curl backwards or fold upon themselves. They may be purple to blue or almost white.[1] The lower petals are the same color, while the upper are often white. The spur is one or two centimeters long. The upper portion of the plant is often hairy.[1]

The species is very poisonous to livestock, especially cattle.[2]

References
  1. Taylor, Ronald J. (1994) [1992]. Sagebrush Country: A Wildflower Sanctuary (rev. ed.). Missoula, MT: Mountain Press Pub. Co. p. 36. ISBN 0-87842-280-3. OCLC 25708726.
  2. Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p. 596. ISBN 0-394-73127-1.

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