Madroño 54: 311. 2008.
Plants 10–50 cm. Leaves: basal 1–10, blade lanceolate, 30–200 x 20–70 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or extensively overlapping distally, 1-serrate, surfaces glabrous, hispid, or downy, abaxial veins downy; cauline 4–20, blade lanceolate, 15–250 x 5–100 mm, 2-pinnatifid, margins of adjacent lobes nonoverlapping or extensively overlapping distally, serrate, surfaces glabrous or hispid to downy. Racemes simple, 1–5, exceeding basal leaves, each 10–50-flowered; bracts lanceolate, 10–35 x 3–5 mm, undivided to pinnatifid distally, proximal margins entire, surfaces glabrous. Pedicels 2–4 mm. Flowers: calyx 12–24 mm, downy, lobes 5, narrowly triangular, 5.5–7.5 mm, apex entire, ciliate; corolla 23–43 mm, tube dark red, purple, or orange-yellow, 9–17 mm; galea dark red, purple, or orange-yellow, 14–26 mm, beakless, margins entire medially and distally, apex straight; abaxial lip dark red, purple, or orange-yellow, 3–7 mm.
Phenology: Flowering Apr–Jun.
Habitat: Mixed coniferous forests.
Elevation: 600–2100 m.
Pedicularis aurantiaca is distinguished from P. densiflora by smaller abaxial lip lobes and longer calyces.