Difference between revisions of "Artemisia nesiotica"

P. H. Raven

Aliso 5: 341. 1963.

Common names: Island sagebrush
Basionym: Crossostephium insulare Rydberg in N. L. Britton et al., N. Amer. Fl. 34: 244. 1916,
Synonyms: A. californica var. insularis (Rydberg) Munz
Treatment appears in FNA Volume 19. Treatment on page 530. Mentioned on page 504, 520, 521, 524.
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|tribe=Asteraceae tribe Anthemideae
 
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|genus=Artemisia
 
|genus=Artemisia

Revision as of 20:21, 16 December 2019

Subshrubs, 10–60 cm (rounded), aromatic. Stems relatively numerous, ascending or prostrate, gray, simple or branched (slender, wandlike, soft, bases woody and brittle), densely canescent. Leaves cauline, gray-green; blades linear-oblong, 3–5 × 1–2 cm, mostly 3-lobed (lobes 1–2 mm wide), faces gray-hairy. Heads (usually erect, sometimes nodding) in (leafy) paniculiform arrays 10–25 × 3–5(–7) cm. Involucres broadly campanulate, 2.5 × 4–4.5 mm. Phyllaries broadly ovate, densely hairy. Florets: pistillate 0; bisexual 20–50; corollas pale yellow, 1.2–1.5 mm, glandular. Cypselae (light brown) ellipsoid (ribbed), 0.5 mm, resinous.


Phenology: Flowering mid–late summer.
Habitat: Rocky slopes, often fog-shrouded hillsides
Elevation: 0–100 m

Discussion

Artemisia nesiotica is known only from the Channel Islands of California. It differs from the closely related A. californica by its shorter stature, wider leaf lobes, and larger heads.

Selected References

None.

Lower Taxa

None.