Helminthostachys zeylanica
Helminthostachys zeylanica
Biota | Plantae | Viridiplantae | Streptophyta | Tracheophyta | Polypodiophytina | Polypodiopsida | Ophioglossidae | Ophioglossales | Ophioglossaceae | Helminthostachys | Helminthostachys zeylanica
| Haeckel, 1866 | Cavalier-Smith, 1981 | John, Williamson & Guiry, 2011 | Sinnott ex Cavalier-Smith, 1998 |  |  | Klinge, 1882 |  | Martinov | Kaulf. | (L.) Hook.