Plants up to 60 cm tall. Leaves 5–6, basal, rosulate, petiolate; petiole up to 14 cm long, narrow, canaliculate; blade up to 15 cm long and five cm wide, elliptic-ovate to ovate, acute, rounded to cuneate at base, densely ciliolate-pubescent. Peduncle densely villose, with a single sheath in the middle, terminated by a densely to sublaxly many-flowered raceme. Flowers light green, lip white, sepals glabrous. Floral bracts 8 mm long, ovate-lanceolate, acute, villose. Pedicel and ovary 10–15 mm long, villose. Dorsal sepal 6–12 mm long, 1.5–3 mm wide, linear-lanceolate to oblong-ovate, acuminate, 5–7-veined. Petals subsessile to shortly unguiculate, 5.5–9 mm long, 1.5–2.2 mm wide, obliquely oblanceolate to lanceolate-elliptic, acute to acuminate, cuneate basally, spreading. Lateral sepals 9–14.5 mm long, up to 10 mm wide when spread, obliquely orbicular-ovate, rounded at apex, united nearly up to the apex to form a large, flat nearly rounded plate, with reflexed margins, and diverging apices, sometimes united only basally, multi-veined. Lip unguiculate; claw ca one mm long, upcurved, terete; lamina one mm long, 1.5 mm wide, horizontally placed, triangular-ovate, bilobed at the base, lobes connivent, the base developed into an elongate curved nectar tube inserted in the sepaline tube, the apex obliquely subobtuse. Gynostemium ca three mm long, long-stalked (Figs. 38 and 39).

Ecology: Terrestrial in wet upper montane forest. Flowering in February and November.

Distribution: Bolivia, Peru, Ecuador, Colombia. Alt. 2,000–2,900 m. The occurrence of this species in Peru was reported by Zelenko & Bermúdez (2009).

Notes: According to Ames & Schweinfurth (1936) P. chuquiribambae is allied to the widespread P. maculata Lindl., particularly to the rather dwarf form of the plant found in Central America, but it differs in having apparently narrower connate lateral sepals and dissimilar distinctly unguiculate ovate-triangular lip.