Alpine serpentweed

Haplopappus alpinus L. C. Anderson & Goodrich, Great Basin Naturalist 40: 73, figs. 1, 3. 1980; Tonestus alpinus (L. C. Anderson & Goodrich) G. L. Nesom & D. R. Morgan

Leaves ascending to spreading, blades 30–70 × 8–36 mm, bases attenuate to cuneate, clasping (more so in distal leaves), apices acute to attenuate; cauline ± sessile, reduced distally. Disc florets: corollas 5.8–7.6 mm, lobes 1–1.6 mm; anthers yellow, ca. 2.6 mm; style branches 1.8–2.5 mm, stigmatic lines nearly as long as appendages, appendages 1.2–1.7 mm. Cypselae 4–5 mm; pappi 6–7 mm. 2n = 18.

Flowering mid summer–fall. Rocky terrain near and above treeline; of conservation concern; 2500–3500 m; Nev.

Toiyabea alpina is found in the Toiyabea and Toquima mountains of southern Nevada.