四川沟酸浆 Erythranthe szechuanensis

by Jun

  • Scientific Name: Erythranthe szechuanensis (Y.Y.Pai) G.L.Nesom
  • Ref: Phytoneuron 2012-39:40. 2012
  • Synonym: Mimulus szechuanensis Y.Y.Pai
  • Chinese Common Name: 四川沟酸浆 Sìchuān gōu∙suānjiāng
  • Family: Phrymaceae
  • Genus: Erythranthe
  • Distribution: Moist places in forests, along streams; 1300-2800 m. Gansu, Hubei, Hunan, Shaanxi, Sichuan, Yunnan.
  • Photo: Mt. Emei, Sichuan
Perennials, to 60 cm tall, erect. Rhizomes long, rooting from nodes. Stems quadrangular, glabrous or sometimes villous, narrowly 4-winged, often branched. Petiole ca. 1.5 cm; leaf blade ovate, 2-6 X 1-3 cm, base cuneate, margin sparsely toothed, apex acute. Flowers solitary in upper leaf axils. Pedicel 1-5 cm. Bracteoles absent. Calyx tubular, 1-1.5 cm, ca. 2 cm in fruit, pubescent, narrowly winged, apex oblique; lobes spinelike, upper lobe largest. Corolla yellow; tube ca. 2 cm, slightly longer than calyx; throat with a purple patch; lower lip as long as upper lip. Capsule narrowly ellipsoid, 1-1.5 cm, somewhat compressed, included in persistent calyx. Seeds brown, ovoid; seed coat reticulate. Fl. Jun-Aug. (Flora of China)
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