Lupinus nanus

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Lupinus nanus
Nanus.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Genus: Lupinus
Subgenus: Lupinus subg. Platycarpos
Species:
L. nanus
Binomial name
Lupinus nanus
Douglas ex Benth.

Lupinus nanus, the sky lupine, field lupine, dwarf lupin, ocean-blue lupine[1] or Douglas' annual lupine, is a species of lupine native to the western United States. It is found natively in California, Nevada, and on Steens Mountain in eastern Oregon. It tends to grow on slopes[2] and in open or disturbed areas below 1300 meters.[3]

It grows 6 to 20 inches (15 to 51 cm) tall with blue flowers containing white or yellow spots. It is an annual plant that blooms in the months of March, April and May.[4]

It contains anagyrine[5] and is considered toxic if directly ingested.[6] Among the biologically active chemicals found in the plant are genistein, , luteone and wighteone.[7]

Variation[]

Lupinus nanus has a large genetic variability.[8] There are three accepted subspecies of Lupinus nanus:[9][10]

  • Lupinus nanus subsp. latifolius (Benth. ex Torr.) D.B. Dunn – Sky lupine
  • Lupinus nanus subsp. menkerae (C.P.Sm.) D.B. Dunn (commonly called Menker's lupine)
  • Lupinus nanus subsp. nanus Douglas ex Benth. – Sky lupine

Lupinus nanus is often found in mixed populations with Lupinus bicolor, , , and (some of these species are not currently recognized as distinct taxa in the Jepson Manual). In addition to the subspecies above, variations include[11]

  • Lupinus nanus var. apricus (Greene) C.P.Sm.
  • Lupinus nanus var. carnosulus (Greene) C.P.Sm.
  • Lupinus nanus var. maritimus Hoover
  • Lupinus nanus var. perlasius C.P.Sm.
  • Lupinus nanus var. vallicola (A. Heller) C.P.Sm.

References[]

  1. ^ "Ocean-blue lupine (Lupinus nanus) (National Gardening Association)". garden.org. Retrieved 21 June 2016.
  2. ^ "Calflora: Lupinus nanus". www.calflora.org. Calflora. Retrieved 21 June 2016.
  3. ^ Sholars, Teresa. "Jepson Herbarium: Jepson Flora Project: Jepson eFlora: Lupinus nanus". ucjeps.berkeley.edu. Retrieved 21 June 2016.
  4. ^ "Lupinus nanus". www.wildflower.org. Lady Bird Johnson Wildflower Center - The University of Texas at Austin. Retrieved 21 June 2016.
  5. ^ Fuller, Thomas C.; McClintock, Elizabeth May (1986). Poisonous Plants of California. University of California Press. p. 164. ISBN 9780520055698. lupinus nanus.
  6. ^ "KNOW YOUR PLANTS!" (PDF). www.calpoison.org. California Poison Control System. Retrieved 21 June 2016.
  7. ^ Bisby, Frank. Phytochemical Dictionary of the Leguminosae. CRC Press. p. 437. ISBN 9780412397707.
  8. ^ Knops, Johannes M. H.; Barthell, John F. (1 January 1996). "FLOWER ABUNDANCE IN A POPULATION OF SKY LUPINE (LUPINUS NANUS) OVER THREE YEARS IN CENTRAL COASTAL CALIFORNIA". Madroño. 43 (1): 85–92. JSTOR 41425120.
  9. ^ "Lupinus nanus (Douglas ex Benth.) - subspecies and accepted taxa". United States Department of Agriculture. Retrieved 4 March 2014.
  10. ^ "Lupinus nanus Douglas ex Benth". www.itis.gov. Retrieved 21 June 2016.
  11. ^ "Fabaceae of North America Update, database (version 2011)". www.itis.gov. Retrieved 21 June 2016.

External links[]


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