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Helminthostachys zeylanica

Cladus: Eukaryota
Regnum: Plantae
Divisio: Pteridophyta
Classis: Psilotopsida
Ordo: Ophioglossales
Familia: Ophioglossaceae
Genus: Helminthostachys
Species: Helminthostachys zeylanica


Helminthostachys zeylanica (L.) Hook., 1840

Vernacular names
Bahasa Indonesia: Paku tunjuk langit
English: Helminthostachys zeylanica
日本語: ミヤコジマハナワラビ


* Genera Filicum t. 47

Helminthostachys zeylanica is a terrestrial, herbaceous, fern-like plant of southeastern Asia and Australia, commonly known as Kamraj and tunjuk-langit. The genus Helminthostachys is monotypic and, just like the other members of its family, it has clusters of sporangia on stems of fertile, spike-like fronds.

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.


The roots of this plant are a popular medicine in China, where they are known as "Di wu gong". The roots are harvested during the wet season in July-August. Only wild plants are harvested. In Malaysia, the leaves are dried and smoked to treat bleeding nose. The plant is eaten as a vegetable and used medicinally for impotence in India.[1]


1. ^ Ethnobotanical Leaflets

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Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License