Watson's Goldenbush

Plants 5–40 cm. Stems erect to spreading (close to the ground), green when young, becoming pale reddish brown, highly branched, coarsely long-stipitate-glandular. Leaves (crowded) ascending; blades elliptic to oblanceolate, 10–25 × 3–8 mm, midnerves evident (1–2 fainter, collateral nerves often present), (margins undulate) apices acute, apiculate, faces long-stipitate-glandular; fascicles usually absent, sometimes of 1–3 reduced leaves). Heads usually in cymiform arrays. Peduncles 1–12 mm (bracts 3–20, crowded, leafy, grading into phyllaries). Involucres broadly obconic, 6–8 × 4–7 mm. Phyllaries 25–30 in 3–4 series, green to tan, ovate to oblong, 4–8 × 0.7–1.5 mm, unequal, outer herbaceous or with herbaceous appendages, inner mostly chartaceous, midnerves usually evident, (margins entire, outer often herbaceous, inner scarious) apices acute to acuminate or attenuate, abaxial faces mostly stipitate-glandular. Ray florets 4–8; laminae elliptic, 6–9 × 1–2 mm. Disc florets 12–22; corollas 5.5–6.5 mm. Cypselae tan to brown, narrowly turbinate, 3–4.5 mm (usually 5-ribbed), moderately sericeous; pappi tan, 4–5.5 mm. 2n = 18.

Haplopappus watsonii A. Gray, Proc. Amer. Acad. Arts 16: 79. 1881 (as Aplopappus watsoni)

Ericameria watsonii, or Watson's goldenbush, is a North American species of flowering shrubs from the family Asteraceae. It is native to the states of Nevada, Utah, and Arizona in the southwestern United States.

Ericameria watsonii is a branching shrub up to 40 cm (16 inches) tall, the stems green when young but become reddish-brown as they get old. Flower heads are yellow, with both ray florets and disc florets. It grows in desert scrublands, rocky slopes, and open pine woodlands.

Ericameria watsonii là một loài thực vật có hoa trong họ Cúc. Loài này được (A.Gray) G.L.Nesom mô tả khoa học đầu tiên năm 1990.