6. Oreocharis aurantiaca Franchet, Bull. Mens. Soc. Linn. Paris, sér. 2. 1: 716. 1888.
橙黄马铃苣苔 cheng huang ma ling ju tai
Perantha aurantiaca Peranthaaurantiaca(Franchet) Pellegrin; P. forrestii Craib.
Petiole to 5(-9.5) cm, densely pale brown woolly; leaf blade rhombic-ovate to narrowly elliptic or lanceolate, 2-5.2 (-9.5) X 1-2.5(-4.5) cm, adaxially densely appressed pubescent, abaxially sparsely to densely pale brown woolly, base sometimes oblique, narrowly cuneate to subcordate, margin coarsely crenate to coarsely dentate or serrate, apex acute to rounded rarely nearly acuminate; lateral veins 3-7 on each side of midrib, frequently indistinct. Cymes 2-10-flowered; peduncle 6-16 cm, translucent to purple-red glandular pubescent, glabrescent; bracts 2, deciduous, ovate to linear, 0.5-1 X 0.2-0.5 mm, pubescent, margin entire. Pedicel 0.7-2.5 cm. Calyx segments subulate to narrowly triangular, 1.5-3.5 mm, margin entire. Corolla deep orange to orange, 1.6-2.5 cm, outside sparsely glandular pubescent; tube cylindric, narrowed at mouth, 1.4-1.7 cm X 4-6(-8) mm; limb 2-lipped; adaxial lip shallowly 2-lobed, lobes 2.5-4 X 2-3 mm; abaxial lip lobes 7-8 X 1-2 mm. Stamens adnate to corolla 4-10 mm above base, 6-10 mm; filaments slender, glabrous; anthers broadly oblong, 2-loculed, dehiscing longitudinally, connective glabrous; staminode 1, ca. 3 mm. Disc ca. 2 mm, slightly undulate. Pistil 1.2-1.7 cm, glabrous. Stigma 1, disc-shaped. Capsule 2-3.5 cm. Fl. Jul-Sep, fr. Aug-Oct.
* Dry limestone rocks in thickets on slopes; 1000-3400 m. NW Yunnan.
See notes under Oreocharis cordatula and O. minor.