蛇足石杉 Huperzia serrata

  • Scientific Name: Huperzia serrata (Thunb.) Trevis.
  • Ref: Atti Soc. Ital. Sci. Nat. 17(2):248. 1874
  • Synonyms:
    • Huperzia myriophyllifolia (Hayata) Holub
    • H. selago var. serrata (Thunb.) Á.Löve & D.Löve
    • H. serrata f. intermedia (Nakai) Ching
    • H. serrata var. intermedia (Nakai) Satou
    • H. serrata var. myriophyllifolia (Hayata) H.M.Chang
    • H. serrata var. paucidentata (Sugim.) Satou
    • Lycopodium sargassifolium Liebm.
    • L. serratum Thunb.
    • L. serratum var. intermedium Nakai
    • L. serratum var. myriophyllifolium Hayata
    • L. serratum var. thunbergii Makino
    • Urostachys myriophyllifolius (Hayata) Herter
    • U. serratus (Thunb.) Herter
    • U. serratus var. japoniconeotropicus Herter ex Nessel
    • U. serratus var. sachalinensis Nessel
  • English Common Name: toothed clubmoss
  • Chinese Common Name: 蛇足石杉 shézú shíshān, 蛇足石松 shézú shísōng
  • Japanese Common Name: トウゲシバ [峠芝] tōgeshiba
  • Family: Lycopodiaceae
  • Genus: Huperzia
  • Distribution: Forests, shrubs, roadsides; 300-2700 m. Throughout China except parts of N and NW China [Bhutan, Cambodia, India, Indonesia, Japan, Korea, Laos, Malaysia, Myanmar, Nepal, Philippines, Russia, Sri Lanka, Thailand, Vietnam; Australia, Central America, Pacific islands].
  • Photo: Tianlong Canyon, Zhejiang
Plants terrestrial. Stem erect or ascending, 10-30 cm, 1.5-3.5 mm in diam. at middle, together with leaves 1.5-4 cm wide, 2-4 times dichotomously branched, upper portion often with bulbils. Leaves sparse, attached at right angles with stem, lustrous, narrowly elliptic, conspicuously contracted toward base, straight, 1-3 cm × 1-8 mm, thinly leathery, both surfaces glabrous, midrib conspicuously raised, base cuneate, decurrent, petiolate, margin straight and not crispate, irregularly toothed, apex acute or acuminate; teeth acute at apex, coarse or slightly small. Sporophylls homomorphic with trophophylls; sporangia visible on both sides of sporophylls, yellowish, reniform. (Flora of China)

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