1. [ noun ] (botany) Australasian fern with clusters of sporangia on stems of fertile fronds
Synonyms: Helminthostachys_zeylanica
Related terms: fern Helminthostachys
2. [ noun ] (botany) any fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters
Synonyms: osmund
Related terms: fern interrupted_fern royal_fern cinnamon_fern genus_Osmunda
Similar spelling:   flowering_tree