Orobanche yunnanensis (Beck) Handel-Mazzetti

Orobanche yunnanensis was misidentified as O. sinensis in Fl. Xizang 4: 389. 1985.

Parasitic on species of Origanum Linnaeus and other Lamiaceae.

Herbs biennial or perennial, 15-25 cm tall, densely glandular pubescent. Stems erect, unbranched. Leaves ovate-lanceolate, 1-1.5 cm x 4-6 mm, along with bracts, calyx, and corolla lobes densely glandular pubescent at margin and abaxially. Inflorescences spicate, 6-10(-12) cm; bracts ovate-lanceolate or lanceolate, 1-1.5(-1.8) cm X 4-6 mm, apex long acuminate or caudate-acuminate; bractlets absent. Calyx 1-1.2(-1.5) cm, irregularly 2-parted to base; lobes long ovate or ovate-lanceolate, 2- or 3-lobed or entire. Corolla usually red, rarely yellow-brown, becoming red-brown or brown when dry, 1.5-1.8(-2) cm, curved; tube enlarged; upper lip elongated, 5-6 mm, apex emarginate; lower lip ca. 1/2 as long as upper; lobes usually reflexed, semirounded, ca. 2 X 3 mm, glandular pubescent, indistinctly dentate villous. Filaments 9-10 mm, sparsely pubescent basally, sparsely glandular pubescent upward; anthers oblong, 1-1.2 mm, sparsely pubescent. Pistil ca. 1.7 cm; ovary ellipsoid, glandular pubescent. Style ca. 1 cm, glandular pubescent; stigma 2-lobed. Capsule ellipsoid, ca. 8 X 3-4 mm. Seeds long ellipsoid, ca. 0.3 X 0.2 mm. Fl. May-Jun, fr. Jul-Aug.

W Guizhou (Weining Xian), SW Sichuan (Muli Xian), N Yunnan.

* Slopes; 2200-3400 m.

Orobanche alsatica Kirschleger var. yunnanensis Beck in Engler, Pflanzenr. IV. 261(Heft 96): 259. 1930.