Lupinus excubitus

Lupinus excubitus is a species of lupine known as the grape soda lupine. Its common name refers to its sweet scent, which is said to be very reminiscent of grape soda. This species and its variants are found in Southwestern United States, especially in California and Nevada, e.g., Death Valley and Joshua Tree National Parks, and northwestern Mexico.[1][2][3][4]

Leaves are generally covered with short silvery hairs.

Lupinus excubitus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Lupinus
Species:
L. excubitus
Binomial name
Lupinus excubitus
M. E. Jones

Description

Lupinus excubitus is a small shrub with gray-green foliage. The fan-shaped leaves are borne on the stem and may be clustered at the base. Generally covered with silvery hairs, each is made up of 7 to 10 narrow 5–50 millimetres (0.2–2.0 in) leaflets. The raceme inflorescence is a tall stalk of rich purple flowers, each with a bright yellow spot. The occasional variant has white flowers. The fruit is a silky legume pod up to 5 centimetres (2.0 in) in length containing mottled brown seeds.[2]

There are several named variants of this species, including:

  • L. e. var. austromontanus – southern mountain lupine
  • L. e. var. excubitus – grape soda lupine, Inyo bush lupine
  • L. e. var. hallii – Hall's bush lupine
  • L. e. var. johnstonii – interior bush lupine
  • L. e. var. medius – Mountain Springs bush lupine, Colorado bush lupine

References
  1. Sullivan, Steven. K. (2018). "Lupinus excubitus". Wildflower Search. Retrieved 2018-07-06.
  2. "Lupinus excubitus". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2018. Retrieved 2018-07-06.
  3. "Lupinus excubitus M.E. Jones". USDA. Plants Profile. Retrieved November 1, 2007.
  4. Tim Johnson (1999). CRC Ethnobotany Desk Reference. CRC Press. p. 495. ISBN 0-8493-1187-X.


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