Artemisia nesiotica

P. H. Raven

Aliso 5: 341. 1963.

Common names: Island sagebrush
Endemic
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.

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.
... more about "Artemisia nesiotica"
not tailed +  and obtuse +
scarious +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Leila M. Shultz +
P. H. Raven +
decurrent +
Crossostephium insulare +
compound +  and simple +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3-lobed;linear-oblong +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
fertile +  and bisexual +
Island sagebrush +
zygomorphic +, actinomorphic +  and (3-)5-merous +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
winged +  and monomorphic +
ellipsoid +
fertile +  and bisexual +
fertile +  and bisexual +
0–100 m +
gland-dotted +
gray-hairy +
peripheral +
winged +  and beaked +
dispersed +
Rocky slopes, often fog-shrouded hillsides +
spiciform +  and racemiform +
in subcapitate clusters +  and singly +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
indeterminate +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
heterogamous +  and homogamous +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
each +  and sessile +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (?) +
campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
sessile +  and petiolate +
gray-green +
persistent +  and deciduous +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
Flowering mid–late summer. +
2 +  and 20 +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
branched +  and simple +
prostrate +  and ascending +
wand-like +
appendaged +  and truncate +
papillate +
A. californica var. insularis +
Artemisia nesiotica +
Artemisia subg. Artemisia +
species +
funnel +  and subglobose +
cylindric +
fibrous-rooted +  and taprooted +
perennial +, biennial +  and annual +