Pyrrocoma sonchifolia Greene, Leafl. Bot. Observ. Crit. 2: 18. 1909; Haplopappus hirtus A. Gray subsp. sonchifolius (Greene) H. M. Hall; H. hirtus var. sonchifolius (Greene) M. Peck

Plants 10–30(–45) cm. Stems glabrate or sparsely villous, densely stipitate-glandular. Leaves: basal blades 50–200 × 15–45 mm, margins entire or coarsely serrate, faces glabrate to sparsely villous, stipitate-glandular. Heads (1–)5–7. Involucres 8–12 × 12–20 mm. Phyllaries loose, subequal, bases chartaceous, apices green (faces stipitate-glandular).

Flowering Jun–Aug. Wet gravelly meadows, forest openings, moist soils; 1200–1800 m; Idaho, Oreg., Wash.

Variety sonchifolia is recognized by its wider leaves and its preference for moist habitats. More study is needed to determine the status of this taxon.