Also found in: Thesaurus, Wikipedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Helminthostachys - one species: terrestrial fern of southeastern Asia and Australia
family Ophioglossaceae, Ophioglossaceae - a family of succulent ferns of order Ophioglossales; cosmopolitan in distribution
flowering fern, Helminthostachys zeylanica - Australasian fern with clusters of sporangia on stems of fertile fronds
fern genus - genera of ferns and fern allies
References in periodicals archive ?
Gradual" root vascular connections (described in Ophioglossum, Helminthostachys, and Woodwardia) are initiated in the apical region of the shoot, and provascular tissue and protoxylem are continuous between shoot and root.
On the prothalli of Ophioglossum pendulum and Helminthostachys zeylandica.
Yinggeling Altitude: 500-800 m Helminthostachys Warming, Wuzhishan Under the moist CR zeylonica (Linn.