Artemisia palmeri
Palmer sagewort, San Diego sagewort
usually 1–15, erect, brown, simple (wandlike, brittle, bases woody), glabrous.
cauline (petiolate), bicolor (gray-green and dark green);
blades broadly lanceolate, 3.5–12(–15) × 0.2–10 cm, relatively deeply and coarsely pinnately lobed (lobes 3–7+), faces canescent (abaxial) or glabrous or sparsely hairy (adaxial).
globose, 2.5–3.5 × 2–5 mm.
pistillate 0;
bisexual 8–30;
corollas pale yellow, 1.5–2.2 mm, resinous-glandular (style branches exsert, truncate, erose).
(pale green to stramineous) broadly ovate, glabrous or sparsely hairy (receptacles paleate).
(erect or nodding, peduncles relatively slender) in open, paniculiform arrays, 15–40 × 3–10 cm (widely branched).
(light brown, shiny) ellipsoid, 1–1.2 mm, (4-angled), glabrous or glandular.
= 18.
Artemisia palmeri
Of conservation concern.
Artemisia palmeri is known only from drainages near the coast, from northeast of San Diego to just south of Ensenada. Most of its habitat has been destroyed by urban development. It is of particular interest because of its paleate receptacles, an anomalous trait that confounds our understanding of its evolutionary relationship to other species of Artemisia.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
