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iNat·332970SpeciesPlantae231 field observations
  1. Plants
  2. ›Vascular Plants
  3. ›Ferns
  4. ›Adder's-tongues, Fork Ferns, and Allies
  5. ›adder's-tongues and allies
  6. ›adder's-tongue family
  7. ›Helminthostachyoideae
  8. ›Helminthostachys
Flowering Fern
Plate 1 of 7. (c) Rejoice Gassah, some rights reserved (CC BY), uploaded by Rejoice Gassah · via iNaturalist

Flowering Fern

Helminthostachys zeylanica

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.

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.

Continue reading on Wikipedia

From the article Helminthostachys zeylanica on Wikipedia (CC BY-SA), quoted section by section

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At the table

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. It is known in the Philippines as túkod-langit. Although the basic pharmacology of some of its components suggests it may possess certain antiinflammatory actions, the available scientific literature does not document clinical efficacy.

Wikipedia: “Uses”

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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In the stacks

Searching the stacks…

Every page naming Helminthostachys zeylanica in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 332970.