Ericameria palmeri (A. Gray) H. M. Hall

Plants 50–400 cm. Stems erect, much branched, twigs crowded, green when young, becoming reddish brown to gray, glabrous or sparsely hairy, usually covered with resin-filled pits. Leaves (moderately crowded) ascending to spreading; blades linear to narrowly oblanceolate (terete, sulcate, or flattened), 5–50 × 0.5–2 mm, midnerves obscure or evident abaxially, apices acute, faces glabrous or moderately hairy, gland-dotted (in circular, deep pits), resinous; axillary fascicles with 1–10 leaves, shorter than subtending leaves. Heads in racemiform to thyrsiform arrays (to 50 × 2–15 cm). Peduncles 2–15 mm (bracts 5–10+, leaflike). Involucres turbinate to subcampanulate, 4–7 × 2.5–4 mm. Phyllaries 16–24 in 3–5 series, mostly tan, narrowly oblong to elliptic, 1.5–6 × 0.4–0.8 mm, unequal, mostly chartaceous, midnerves evident on at least distal ¹ / 2 , slightly to strongly thickened, expanded distally, (margins narrowly membranous, sometimes ciliate distally) apices acute to rounded, abaxial faces glabrous, outer sometimes gland-dotted (sessile), frequently resinous. Ray florets 2–8; laminae 4–5 × 1–1.8 mm. Disc florets 6–20; corollas 5–7 mm. Cypselae tan to brown, subcylindric, 3.5–4 mm, moderately to densely hairy; pappi off-white to brown, 5–8 mm. 2n = 18.

Haplopappus palmeri A. Gray, Proc. Amer. Acad. Arts 11: 74. 1876 (as Aplopappus)

Ericameria palmeri, or Palmer's goldenbush, is a North American species of flowering shrubs in the family Asteraceae. It is native to southern California in the United States and to the state of Baja California in Mexico.

Ericameria palmeri is a branching shrub sometimes as much as 400 cm (over 13 feet) tall. Leaves are linear to narrowly oblanceolate. One plant can produce many small, yellow flower heads, each containing 2–8 ray florets and 6–20 disc florets.

Varieties Ericameria palmeri var. pachylepis (H.M.Hall) G.L.Nesom - California from northern San Diego County north to Kern and San Luis Obispo Counties Ericameria palmeri var. palmeri - northern Baja California; California (San Diego Co, Orange Co, western Riverside Co, southwestern San Bernardino Co; isolated populations north of Calabasas in Los Angeles Co and southeast of Lake Isabella in Kern Co)