Artemisia nesiotica

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Artemisia nesiotica
Artemisia nesiotica - University of California Botanical Garden - DSC09012.JPG
University of California Botanical Garden, Berkeley
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Artemisia
Species: A. nesiotica
Binomial name
Artemisia nesiotica
P.H.Raven
Synonyms[1]
  • Artemisia californica var. insularis (Rydb.) Munz
  • Crossostephium insulare Rydb.

Artemisia nesiotica is a rare California species of sagebrush in the daisy family, known by the common name island sagebrush. It is endemic to the Channel Islands of California, found on 3 of the 8 islands (San Nicolas, San Clemente, and Santa Barbara Islands).[2]

Artemisia nesiotica is a small shrub growing up to about 50 cm (20 inches) tall and generally rounded in shape. It produces several thin, upright stems from a woody base. The foliage is made up of woolly leaves divided into many thin, flat, threadlike segments. The inflorescence is a narrow cluster of several flower heads. The fruit is a tiny resinous achene with a pappus of hairs.[3]

The earliest name given to the plaint was Crossostephium insulare, coined by Per Axel Rydberg in 1916.[4] In 1935, Philip Alexander Munz declared this to be a variety of Artemisia californica.[5] Peter Raven later wanted to recognize the Channel Island plants as a distinct species within Artemisia, but the name Artemisia insularis had already been used for a Kuril Islands plant in 1936.[6] Hence Raven's new name, Artemisia nesiotica.[7]

References

  1. ^ The Plant List Artemisia nesiotica P.H.Raven
  2. ^ Calflora taxon report, University of California, Artemisia nesiotica Raven, island sage brush, island sagebrush
  3. ^ Flora of North America Vol. 19, 20 and 21 Page 530 Island sagebrush, Artemisia nesiotica P. H. Raven, Aliso. 5: 341. 1963.
  4. ^ Rydberg, Per Axel 1916. in Britton, Nathaniel Lord, North American Flora 34(3): 244 description in English
  5. ^ Munz, Philip Alexander 1935. Manual of Southern California Botany 601
  6. ^ Kitamura, Siro 1936. Acta Phytotaxonomica et Geobotanica 5: 93
  7. ^ Raven, Peter Hamilton 1963. Aliso 5(3): 341

External links

  • Calflora Database: Artemisia nesiotica (Island sagebrush)
  • Jepson Manual eFlora (TJM2) treatment of Artemisia nesiotica[permanent dead link]
  • Artemisia nesiotica in the CalPhotos Photo Database, University of California, Berkeley


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