genus_regnellidium
1. [ noun ] (biology,botany) 1 species of aquatic or semi-aquatic fern
Related terms: fern_genus Marsileaceae regnellidium
Similar spelling:   genus_Armadillidium
  genus_Retrophyllum
  genus_Groenlandia
  genus_Grevillea
  genus_Rosellinia
  genus_Griselinia
  genus_Reticulitermes
  genus_Cercidium