Gnetum edule is an evergreen, woody, dioecious, climbing vine that is native to Southern India between 100 and 1,500 meters of elevation. It can be found on trees in the hill forests of Nilgiris (Western Ghats). New leaves appear in March, flowers in March–April and fruits from April onwards, ripening yellow in November.[3][1][4]

Gnetum edule
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Gnetophyta
Order: Gnetales
Family: Gnetaceae
Genus: Gnetum
Species:
G. edule
Binomial name
Gnetum edule
Synonyms[2]

Homotypic:

  • Gnetum edulis (Willd.) Kuntze
  • Gnetum scandens Roxb.
  • Gnetum ula Brongn.
  • Thoa edulis Willd.
  • Gnetum funiculare Buch.-Ham. ex Sm.
  • Thoa scandens (Roxb.) Doweld

Heterotypic:

  • =Gnetum funiculare Blume
  • =Gnetum pyrifolium Miq. ex Parl.

Description

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An evergreen woody vine. Stems with swollen nodes. Leaves opposite, stalked, simple, pinnately veined, margin entire. Flowers unisexual, borne in whorled, spike-like cones, arranged in lax, cymes. Male spikes have collars closely arranged and ± hiding axis (less often somewhat laxly arranged), each collar with 20–80 flowers, often also with a whorl of sterile female flowers, apical whorl with sterile female flowers only. Female spikes are solitary or several in a panicle, often cauliflorous; involucral collars widely separated, each with 4–12 flowers. Seeds drupelike, enclosed in a red, orange, or yellow, fleshy (rarely corky) false seed coat.[3]

Distribution

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G. edule is one of 7 Gnetum species found in India.[4] It grows primarily in the wet tropical biomes in southwest and southeastern India.[5] It is found in the Karakoram–West Tibetan Plateau alpine steppe, North Western Ghats montane rain forests, South Deccan Plateau dry deciduous forests, and Malabar Coast moist forests ecoregions.[1] It has also been reported from the Andaman and Nicobar Islands.[6]

Etymology

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The genus name Gnetum likely derives from the Moluccan name of the tree, ganema. The species epithet edule is derived from the latin word 'ĕdūlis', meaning edible.

In English it is sometimes called jointfir,[6][3] though this name is shared by several species within the Gnetophyta division. Additionally, it may also be called monkey's bridge,[6] but this too is shared across several unrelated vining species in India with medicinal importance. In the Western and Eastern Ghats, it is known locally as lollodu teega.[4] In Kannada it is known as kumtibeeja,[4] kodkamballi,[7][3] 'avuru katte' (ನವುರು ಕಟ್ಟೆ),[3] or kumti beeja.[citation needed] In Malayalam it is known as nowukatte[3] or odal.[1] In Odiya it is called lolori or lolorimal.[4] In Telugu it may be called apajuttili, kaloi, loluga tige, or luliti.[3]

Uses

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As with most species of Gnetum, the seeds are edible and usually consumed after roasting.[1] The seeds can also produce an oil that is used for medicine or burning.[1][8]

In the Kodaikanal region, the local people extract oil from the seeds of G. edule and use it for burning lamps made from soil.[4] In Chatnoor, where local people use the seeds of G. edule for as a fish poison due to their piscicidal property.[4]

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References

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  1. ^ a b c d e f "Gnetum ula". IUCN Red List of Threatened Species. 2010-03-11. 2010-03-11. doi:10.2305/IUCN.UK.2011-1.RLTS.T194940A8923594.en.
  2. ^ "Gnetum edule". Catalogue of Life. Retrieved 2024-10-24.
  3. ^ a b c d e f g "Gnetum edule — Joint Fir". Flowers of India. Retrieved 2024-10-24.
  4. ^ a b c d e f g Shakya, Anoop (2023-08-14). "Gnetum L., an underutilized plant of India: distribution and ethnobotany". Genetic Resources and Crop Evolution. 71: 29–38. doi:10.1007/s10722-023-01704-7.
  5. ^ "Gnetum edule (Willd.) Blume". Plants of the World Online. Kew Science. Retrieved 2024-10-25.
  6. ^ a b c "Gnetum edule". eFlora of India. 2 March 2011. Retrieved 2024-10-25.
  7. ^ "Gnetum ula Brongn". Global Biodiversity Information Facility. Retrieved 2024-10-24.
  8. ^ "Gnetum edule". Useful Tropical Plants. Retrieved 2024-10-24.