祁阳细辛 Asarum magnificum

  • Scientific Name: Asarum magnificum Tsiang ex C.Y.Cheng & C.S.Yang
  • Ref: J. Arnold Arbor. 64:593. 1983
  • English Common Name: Chinese magnificent wild ginger
  • Chinese Common Name: 祁阳细辛 Qíyáng xìxīn
  • Family: Aristolochiaceae
  • Genus: Asarum
  • Distribution: Forests, thickets, mountain slopes, moist shady areas; 300-700 m. Guangdong, Hunan.
  • Photo: 04/15/2019, Hangzhou Botanical Garden, Zhejiang
Herbs. Rhizomes vertical, 2-3 mm in diam., internodes less than 5 mm. Leaves solitary; petiole 6-16 cm, glabrescent; leaf blade adaxially with or without white blotches, triangular-ovate or nearly triangular to elliptic-ovate, 6-13 × 5-12 cm, abaxial surface glabrous, adaxial surface pubescent along midvein or over entire surface, base cordate-auriculate, apex acute or shortly acuminate; cataphylls ovate, ca. 1.5 × 0.7 cm. Peduncle recurved, ca. 1.5 cm. Calyx purplish green, urceolate-rotate, 3-5 × 4-5 cm; sepals connate beyond attachment to ovary, abaxially glabrous; tube cylindric, 1-5 × 0.8-1.5 cm, not constricted at throat, adaxially longitudinally ribbed with rows of papillae, orifice ring inconspicuous; lobes triangular-ovate, ca. 3 × 2.5-3 cm, base with triangular papillate area. Stamens 12; filaments much shorter than anthers; connectives slightly extended beyond anthers, acute. Ovary inferior. Styles free, apex 2-forked; stigmas lateral. Fl. Apr-May. (Flora of China)

Leave a comment