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
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.