Eriophyllum tanacetiflorum Greene, Pittonia 2: 21. 1889

Leaf blades spatulate to obovate, 2–5 cm, 3–5-lobed, lobes ± oblong. Heads (3–)4–7(–10) per array. Peduncles 0–2.5(–9) cm. Involucres 5–7 mm diam. Phyllaries 5–7(–8), ovate, apices obtuse or acute. Ray florets 0 or 4–6; laminae 4–5 mm. Disc florets 35–75; corollas 3.5–4 mm. Cypselae 2–3.5 mm; pappi 0.5–1.3 mm. 2n = 64.

Flowering May–Jul. Dry sites, oak woodlands; of conservation concern; 300–1000 m; Calif.

Variety tanacetiflorum is known only from the central Sierra Nevada foothills. At least one population is sympatric with Eriophyllum lanatum and E. confertiflorum var. confertiflorum. It may deserve specific recognition.