长柄过路黄 gui zhou guo lu huang

Herbs perennial, 20--35 cm tall. Stems erect or arcuate at base, slightly angulate, usually simple, with multicellular hairs. Leaves opposite, usually 3 or 4 pairs on upper part of stem; petiole 2.5--4 cm, narrowly winged, pilose; leaf blade ovate, 4--7.5 X 1.5--4 cm, abaxially glabrescent except for minutely bristly veins, sparsely transparent glandular, adaxially sparsely bristly, base broadly cuneate to subrounded, apex acute; veins 4 or 5 pairs; veinlets inconspicuous. Inflorescences terminal, capitate, 5- or 6-flowered. Pedicel 1--2 mm, densely pubescent. Calyx lobes lanceolate, 9--10 X ca. 1.5 mm, with sparse multicellular hairs. Corolla yellow, 1.8--2 cm in diam.; tube 4--5 mm; lobes oblong-lanceolate, 12--15 X 4.5--5 mm. Filaments connate basally into a ca. 4 mm high tube, free parts 3--5 mm; anthers dorsifixed, opening by lateral slits. Ovary ovoid; style ca. 8 mm. Capsule unknown. Fl. Apr.

* Open mountain woodlands, woodland margins; 700--800 m. S Guizhou.