Helminthostachys zeylanica
Species of fern / From Wikipedia, the free encyclopedia
Helminthostachys zeylanica is a terrestrial, herbaceous fern of southeastern Asia and Australia, commonly known as kamraj and tunjuk-langit. The species is like the other members of its family, it has clusters of sporangia on stems of fertile, spike-like fronds.
Quick Facts Helminthostachys zeylanica, Scientific classification ...
Helminthostachys zeylanica | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Ophioglossales |
Family: | Ophioglossaceae |
Genus: | Helminthostachys |
Species: | H. zeylanica |
Binomial name | |
Helminthostachys zeylanica | |
Synonyms | |
|
Close
The rhizome of this annual plant is short, creeping, underground, and stout. They can bear either a solitary frond or several fronds. Leaves are lanceolate with the margins entire or irregularly serrate.
The frond spike arises from the base of the leaves with its own stipe. Below the spike is a sterile leafy segment (the trophophore). Both it and the sporophore arise from a common petiole.