Helminthostachys is a fern genus in the Ophioglossaceae (Adder`s tongue) family. ...
(from the article `fern`) ...veins reticulate (netlike) or free; sporangia borne upon unbranched `spike` or many-branched fertile structure arising from base of the blade or ... ...about 50 species, distributed throughout the world, includes the grape ferns, moonworts, and rattlesnake fern; some of these species have been ... ...
[n] - 1 species: terrestrial fern of southeastern Asia and Australia