- Scientific Name: Ponerorchis chusua (D.Don) Soó
- Ref: Acta Bot. Acad. Sci. Hung. 12:352. 1966
- Synonym: Orchis chusua D.Don
- Chinese Common Name: 广布小红门兰 guǎngbù xiǎo∙hóngménlán
- Family: Orchidaceae
- Genus: Ponerorchis
- Distribution: Forests, Rhododendron scrub, alpine grasslands, limestone outcrops, scree; 500-4500 m. E Gansu, Heilongjiang, Henan, SE and W Hubei, Jilin, Nei Mongol, Ningxia, E Qinghai, S Shaanxi, Sichuan, S and SE Xizang, NE and NW Yunnan [Bhutan, N India, Japan, Korea, N Myanmar, Nepal, Russia
- Photo: 07/21/2011，Mt. Taibai, Qinling
Plants (5-)8-45 cm tall. Tubers oblong or globose, 10-20 × ca. 10 mm. Stem (2.5-)5-23 cm, with 1-3 tubular sheaths at base, (1 or)2-5-leaved. Leaves cauline, alternate, widely spaced, green, lacking purple spots, linear, oblong-lanceolate, or elliptic, 3-15 × 0.2-3 cm, becoming smaller and bractlike above, glabrous, apex acute or acuminate. Inflorescence erect or slightly curved, 2-20 cm, glabrous; rachis 1.5-9 cm, (1 or)2-20-flowered; floral bracts lanceolate to ovate-lanceolate, 7-22 mm, lower ones foliaceous and exceeding flower, apex acuminate. Flowers often secund, pink, purplish red, or purple, medium-sized; ovary fusiform, 7-15 mm including pedicel, glabrous. Dorsal sepal erect, oblong or ovate-oblong, concave, 5-7(-8) × 2.5-4(-5) mm, 3-veined, apex subobtuse or acute; lateral sepals reflexed, ovate-lanceolate, oblique, 6-8(-9) × 3-5 mm, 3-veined, apex subobtuse to acuminate. Petals erect, forming a hood with dorsal sepal, narrowly ovate, broadly ovate, or narrowly ovate-oblong, oblique, 5-6(-7) × 3-4 mm, glabrous, 3-veined, apex obtuse; lip broadly oblong to obovate, 7-12(-15) × 7-13(-17) mm, spurred, 3- or 4-lobed above middle, margin crenulate, disk tinged white at base, marked with deep purple blotches; lobes variable; lateral lobes broadly oblong to subtriangular, falcate, 2-3(-5) × 2.5-5(-7) mm, apex obtuse or acute; mid-lobe oblong, square, or ovate, 1.8-3.5(-5) × 2-3.5(-6) mm, usually longer than broad, apex truncate to obtuse-rounded, subentire to distinctly notched and forming 2 lobules, often apiculate between 2 lobules; spur slightly pendulous or horizontal, sometimes distinctly curved upward toward apex, cylindric to cylindric-conic, often slightly attenuate, 7-15(-19) mm, usually slightly longer than ovary. Fl. Jun-Aug. (Flora of China)
