TUKOD LANGIT/TUNJUK LANGIT (HELMINTHOSTACHYS ZEYLANICA)
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$ CALLFLOWERING FERN
Ru di wu gong
| Scientific names | Common names |
| Helminthostachys zeylanica (L.) Hook. | Tukod-langit (Tag.) |
| Helminthostachys dulcis Kaulfuss. | Flowering fern (Engl.) |
| Osmunda zeylanica L. | Kamraj (Engl.) |
| Qi zhi jue (Chin.) | Ru di wu gong (Chin.) |
| Other vernacular names |
| BENGALI: Ekbir. |
| INDONESIA: Rawu bekubang, jajalakan, pakis kaler, Tunjuk Langit |
| MALAYSIA: Tunjok langit, akar paku, jelai. |
| THAILAND: Kut chong, tin nok yung, phak nok yung. |
| VIETNAM: S[aa]m d[aas]t, r[as]ng re[uf]ng gi[es], s[aa]m b[of]ng bong. |
Botany
Tukod-langit is a herbaceous stipitate fern, growing a foot or more in moist ground. Rhizomes are short, thick, and creeping, Stipes are erect, 15 to 30 centimeters long. Fronds grow singly from the underground rhizomes, and the appearance is characteristic. Leaf blade spreads out almost horizontally, resembling an umbrella, hence the common name. It has three segments, each of which may be divided into two to five parts. Ultimate segments are 7 to 15 centimeters long, and 2 to 4 centimeters wide, and lanceolate. Mature leaves have a spike, 7 to 20 centimeters long, that extends upward from the leaf stalk, roughly following the latter in length. Upper portion of the spike contains the spores.
Distribution
- In open bushy places near sea level, in moist ground, especially along the banks of streams.
- Often found in thickets, around bamboo clumps.
- New fronds usually initiated at the beginning of the rainy season.
- Occurs at low altitudes from India, Sri Lanka, China and Taiwan, throughout Southeast Asia to tropical Australia.
Constituents
- Studies yielded stilbenes and flavonoids with antioxidant activities.
- Yields four flavonoids -- ugonin A, B, C, and D, stigmasterol, fucosterol and dulcitol.
Properties
- Expectorant, good antidote for snakebites, antiasthmatic.
- Considered aperient, aphrodisiac.
Parts utilized
· Rhizome.
· Wash and dry under the sun.
- Use rhizomes for propagation; preferably in shaded and moist area.
Uses
Nutritional
- Young leaves popular as salad vegetable.
- Excellent source of phosphorus and iron; a fair source of calcium.
Folkloric
· For coughing due to tuberculosis, asthma, poisonous snakebites: boil 6 to 10 grams dried drug in a cup of water and drink the decoction.
· For snakebites: crush the fresh plant and poultice the wound.
· For fractures and bone strengthening.
· Rhizome is chewed with betel for whooping cough.
· In India, used in Kerala for the treatment of hepatic disorders; rhizome also used for curing impotency; rhizome is chewed with areca for whooping cough.
· In Bangladesh, Khagrachari tribe use the plant to stop hemorrhages. Decoction of rhizome used in impotency. In Bandarban, root juice used with other plants for treatment of jaundice. Leaf Juice used for tongue blisters.
· In China, rhizome is used as antipyretic and antiphlogistic.
· In Malaysia, rhizome used as a tonic. Decoction of leaves used as tonic after childbirth. Rhizome mixed with Piper betel for cough and venereal diseases.
· In Java, used for dysentery, catarrh, phthisis.
· In the Moluccas, used to relieve constipation.
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