Artemisia nesiotica

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
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Artemisia
Species:
A. nesiotica
Binomial name
Artemisia nesiotica
Synonyms[1]
  • Artemisia californica var. insularis (Rydb.) Munz
  • Crossostephium insulare Rydb.

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
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