Artemisia franserioides
Artemisia palmeri
bursage mugwort, ragweed sagebrush
Palmer sagewort, San Diego sagewort
1–3, erect, reddish brown, simple (leafy), glabrous or glabrate.
usually 1–15, erect, brown, simple (wandlike, brittle, bases woody), glabrous.
basal (in rosettes, petiolate) and cauline, bicolor (white and green);
blades ovate, 3–7(–20) × 2–4(–6) cm, 2–3-pinnately-lobed (lobes elliptic, 2–6 mm wide; cauline sessile, smaller), faces tomentose (abaxial) or glabrous or glabrescent (adaxial), glandular.
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).
broadly ovate, 3–5 × 4–5(–6) mm.
globose, 2.5–3.5 × 2–5 mm.
pistillate 4–5(–13), (1–1.5 mm);
bisexual 25–35;
corollas yellow, 1.5–2 mm, glabrous.
pistillate 0;
bisexual 8–30;
corollas pale yellow, 1.5–2.2 mm, resinous-glandular (style branches exsert, truncate, erose).
broadly ovate, sparsely hairy.
(pale green to stramineous) broadly ovate, glabrous or sparsely hairy (receptacles paleate).
(nodding, peduncles 0 or 2) in paniculiform to racemiform arrays 10–35 × 2–4 cm (often 1-sided).
(erect or nodding, peduncles relatively slender) in open, paniculiform arrays, 15–40 × 3–10 cm (widely branched).
elliptic, 0.5–0.8 mm, glabrous.
(light brown, shiny) ellipsoid, 1–1.2 mm, (4-angled), glabrous or glandular.
= 18.
Artemisia franserioides
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.)
SW CO Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
CA
