Heliograph Peak fleabane

Perennials, 1.5–4.5 cm; taprooted, caudex branches relatively thick, short, retaining old leaf bases. Stems erect, usually sparsely strigose, eglandular. Leaves basal (persistent) and cauline; basal blades linear to barely linear-oblanceolate, 10–20(–40) × 0.5–0.9 mm, cauline slightly reduced distally, margins entire, faces sparsely strigose or glabrous, eglandular. Heads 1(–3). Involucres 3–4 × 5–6 mm. Phyllaries in 3–4 series (purplish), sparsely strigose, little, if at all, minutely glandular. Ray florets 20–23; corollas laminae white, drying white to lavender, 5–8 mm, laminae reflexing. Disc corollas 3–3.5 mm. Cypselae ca. 1.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 16–21 bristles.

Flowering May–Jul. Boulder and cliff crevices, oak, pine-fir, mixed conifer; of conservation concern; 2500–3200 m; Ariz.