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Cassytha filiformis
C. filiformis at Kanaio
Beach, Maui, Hawaii

Apparently Secure  ( NatureServe) [1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Laurales
Family: Lauraceae
Genus: Cassytha
Species:
C. filiformis
Binomial name
Cassytha filiformis
Synonyms [3]
List
    • Calodium cochinchinense Lour.
    • Calodium cochinchinensis Lour.
    • Cassytha americana Nees
    • Cassytha americana var. brachystachya Meisn.
    • Cassytha americana var. brasiliensis (Mart. ex Nees) Meisn.
    • Cassytha americana var. puberula Meisn.
    • Cassytha aphylla Raeusch.
    • Cassytha archboldiana C.K.Allen
    • Cassytha brasiliensis Mart. ex Nees
    • Cassytha corniculata Burm.f.
    • Cuscuta reflexa Roxb.
    • Cassytha cuscutiformis F. Muell.
    • Cassytha dissitiflora Meisn.
    • Cassytha filiformis var. pseudopubescens Domin
    • Cassytha filiformis f. pycnantha Domin
    • Cassytha guineensis Schumach. & Thonn.
    • Cassytha lifuensis Guillaumin
    • Cassytha macrocarpa Guillaumin
    • Cassytha novoguineensis Kaneh. & Hatus.
    • Cassytha paradoxae Proctor
    • Cassytha senegalensis A.Chev.
    • Cassytha timoriensis Gand.
    • Cassytha zeylanica Gaertn.
    • Rumputris fasciculata Raf.
    • Spironema aphylla Raf.
    • Volutella aphylla Forssk.

Cassytha filiformis or love-vine is an orangish, wiry, parasitic vine in the family Lauraceae. [3] It is found in coastal forests of warm tropical regions worldwide including the Americas, Indomalaya, Australasia, Polynesia and tropical Africa. [4] [5] [6]

It is an obligate parasite, meaning it cannot complete its life-cycle without another host plant. Research in Florida (in southeast United States) has found that love-vine inhibits gall wasps by attacking the galls (small growths on plants) that the wasps create for their young.

Description

Vines

Cassytha filiformis is a twining vine with yellow or orange to pale green hollow stems with a length between 3–8 metres long. The stems attach to host plants by growing shoots from the base of its root, they have haustoria that fold inside the hosts' phloem and xylem membranes to absorb water and nutrients for a long time until they dry up and die. [7] [4]

Leaves are reduced to scales about 1 mm long and can be seen near stem ends. [7] [5]

Flowers and fruit

Flowers are borne in spikes 1–2 cm long from short stalks or sometimes solitary. There are six curved inward tepals made of 3 outer oval ones 1 mm long and three inner ones 2.5 mm long. Each one has smooth (glabrous) and broad stamens with short pointy ends forming into a beak shape. [4]

  • C. filiformis flowers
    C. filiformis flowers
  • C. filiformis fruit, Hawaii
    C. filiformis fruit, Hawaii

Fruit is a round and green or whitish drupe about 7 mm in diameter. Its juicy flesh is eaten and dispersed by birds. [7] [5]

Uses and relationship with humans

In the Malay Peninsula, the stems are dried and powdered to make a liquid substance to stimulate hair growth. [7]

Pregnant women in Polynesia drink juice from the vines for 4 weeks before their babies' due date to reduce pains giving birth. [4]

In the Caribbean region, it is one of several plants known as "love vine" because it has a reputation as an aphrodisiac. [8]

The 1889 book 'The Useful Native Plants of Australia records that the "This and other species of Cassytha are called " Dodder-laurel." The emphatic name of "Devil's guts" is largely used. It frequently connects bushes and trees by cords, and becomes a nuisance to the traveller. "This plant is used by the Brahmins of Southern India for seasoning their buttermilk. (Treasury of Botany?)". [9]

Gall wasps

A 2018 study revealed how a southern Florida subspecies of this widespread species is involved in a newly discovered form of trophic interaction involving gall-forming cynipid wasps. New tendrils will actively seek out galls made by the gall wasp, Belonocnema treatae, on leaves of a host oak tree, Quercus geminata. The findings show that galls attacked by haustoria were associated with a 45% less survival rate for the wasps, suggesting that C. filiformis has an important negative impact on gall wasp survival. In the study, [10] other species of plant and wasp galls are parasitised by this plant in the southern Florida area too.

References

  1. ^ "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 13 November 2022.
  2. ^ "Cassytha filiformis". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2013-01-28.
  3. ^ a b "Cassytha filiformis L." World Flora Online. World Flora Consortium. 2023. Retrieved 5 March 2023.
  4. ^ a b c d Nelson, Scot C. (July 2008). "Cassytha filiformis" (PDF). Plant Disease. 42. College of Tropical Agriculture and Human Resources, University of Hawaiʻi at Mānoa: 1–10.
  5. ^ a b c "Cassytha filiformis Linnaeus, Sp. Pl. 1: 35. 1753". Flora of North America. eFlora. n.d.
  6. ^ Correll, Donovan Stewart; Johnston, Marshall Conring (1970). Manual of the Vascular Plants of Texas. University of Texas at Dallas.
  7. ^ a b c d Tan, Ria (13 January 2023). "Rambut putri (Cassytha filiformis)". Wild Singapore. Retrieved 5 March 2023.
  8. ^ Richey-Abbey, Laurel Rhea (2012). Bush Medicine in the Family Islands: The Medical Ethnobotany of Cat Island and Long Island, Bahamas (Thesis).
  9. ^ Maiden, J. H (1889). The useful native plants of Australia (including Tasmania). Turner and Henderson. OCLC  670084041.[ page needed]
  10. ^ Egan, Scott P.; Zhang, Linyi; Comerford, Mattheau; Hood, Glen R. (August 2018). "Botanical parasitism of an insect by a parasitic plant". Current Biology. 28 (16): R863–R864. doi: 10.1016/j.cub.2018.06.024. PMID  30130501. S2CID  52058081.

External links

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