Black Rock Townsend Daisy

Perennials, 3–8(–12+) cm (usually ± pulvinate). Stems ± erect; inter-nodes 0.1–1 mm, ± scabrellous. Leaves basal and cauline, ± spatulate to oblanceolate, 15–50(–80) × 2–6(–11) mm, little, if at all, fleshy, faces ± scabrellous. Heads on scapiform peduncles 30–80(–120) mm. Involucres ± hemispheric to campanulate, 10–15 mm diam. Phyllaries 14–26 in 2–3+ series, the longer lance-ovate to lanceolate, 9–11 mm (l/w = 3–5), apices attenuate, abaxial faces piloso-strigose to strigose. Ray florets 12–21; corollas white adaxially, laminae 6–12+ mm, glabrous abaxially. Disc florets 60–80+; corollas 3.5–5 mm. Cypselae 2.5–3.5 mm, faces hairy, hair tips entire; pappi persistent, 16–20+ lanceolate to subulate scales 0.2–0.8 mm (± connate). 2n = 18.

Townsendia smithii là một loài thực vật có hoa trong họ Cúc. Loài này được L.M.Shultz & A.H.Holmgren miêu tả khoa học đầu tiên năm 1980.