Botany (Fortieth Parallel), 458. 1871.
Annuals (5–)10–35 cm. Stems erect or ascending, puberulent to sparsely puberulent. Leaves 20–50 mm; blade margins entire. Inflorescences spikes, 2–8 cm; bracts 10–15 mm, margins 3-lobed in proximal 1/2, proximal not resembling distal leaves, midlobe purple-pink distally, obovate, 6–10 mm wide, apex obtuse, cuspidate, lateral lobes triangular. Pedicels 0–1 mm. Flowers: calyx 5–7 mm; corolla 10–15 mm, slightly longer than bracts, abaxial lip inflated, lobes 3, triangular, adaxial lip purple-pink, 3–4 mm, 0–0.5 mm longer than abaxial, puberulent, tip hooked, not bearded. Capsules 4–5 mm, apex retuse. Seeds 3–5, dark brown, reniform, 1.5–2 mm, reticulate, not ridged. 2n = 28.
Phenology: Flowering Jun–Sep.
Habitat: Montane meadows, grassy or rocky slopes.
Elevation: 1100–2400 m.
B.C., Calif., Oreg., Wash.
In northern California, Orthocarpus imbricatus is known from the Klamath, North Coast, and Cascade ranges.