Stephanomeria

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iStephanomeria
S. virgata
S. virgata
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Stephanomeria
Nutt.
Species

See text.

Stephanomeria is a genus of plants also known as wirelettuce, belonging to the family Asteraceae. The ten perennial and six annual species are restricted to western North America.[1]

Stephanomeria species are used as food plants by the larvae of some Lepidoptera species including Schinia scarletina, which feeds exclusively on the genus.

[edit] Species

This genus contains the following species:[1][2]

  • S. cichoriacea - chicoryleaf wirelettuce - southern California
  • S. diegensis - wreathplant - southern California; Hybrid origin: S. exigua х S. virgata[3]
  • S. elata - Santa Barbara wirelettuce - California and Oregon
  • S. exigua - small wirelettuce - widespread throughout western US.
  • S. fluminea - Teton wirelettuce - Endemic to northwestern Wyoming
  • S. guadalupensis - Endemic to Guadalupe Island
  • S. lactucina - lettuce - California, Oregon and Nevada
  • S. malheurensis - Malheur wirelettuce - Oregon
  • S. minor - lesser wirelettuce - widespread, western US
  • S. minor - tufted wirelettuce - western states
  • S. parryi - Parry's wirelettuce - Arizona, California, Nevada, Utah
  • S. pauciflora - Brownplume wirelettuce - widespread, southwestern US
  • S. runcinata - desert wirelettuce - Colorado, Montana, Nebraska, Utah, Wyoming, North Dakota
  • S. schottii - Schott's wirelettuce - Arizona
  • S. thurberi - Thurber's wirelettuce - New Mexico, Arizona
  • S. virgata - rod wirelettuce - California, Oregon, Nevada
  • S. wrightii - Wright's wirelettuce - Texas, New Mexico


The following species have been re-assigned to different genera:[1]

  • S. blairii -> Malacothrix blairii
  • S. spinosa -> Lygodesmia spinosa

[edit] References

  1. ^ a b c Lee, J., Baldwin, B., and Gottlieb, L.D.; Phylogeny of Stephanomeria and related genera (compositae-lactuceae) bed on analysis of 18S-26S nuclear rDNA ITS and ETS sequences; American Journal of Botany. 2002; 89:160-168
  2. ^ USDA PLANTS Profile page for Stephanomeria [1]
  3. ^ Gallez G.P.L.D., Gottlieb 1982 Genetic evidence for the hybrid origin of the diploid plant Stephanomeria diegensis. Evolution 36: 1158-1167


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