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Family Araceae
Payau
Homalomena philippinensis Engl.

Scientific names Common names
Homalomena philippinensis Engl. Alipaiu (Tag.)
Homalomena rubescens var. latifolia Engl. Alupayi (Tag.)
  Alipayo (Tag.)
  Hayau (Sub.)
  Payau (Tag.)
  Phayaw (Sub.)
  Salet (Pang.)
  Salet-ñga-nalabaga (Tag.)
  Tahig (Bik.)
Homalomena philippinensis Engl. is an accepted name The Plant List

Snippet
- The Plant List includes 212 scientific plant names of the species rank for genus Homalomena, with 106 accepted species names. (5)
- Homa
lomena derives from a mistranslated Malayan vernacular name, homalos meaning flat, and mene meaning moon. (4)
- Many species of Homalomena yield a strong smell of anise. (4)

Botany
Payau is an herbaceous plant up to 1 meter high. Leaves grow in clusters from the ground, heart-shaped with pointed tip, 25 to 30 centimeters long, and on long petioles. Spathe is greenish, flushed with purple, oblong, 4 to 5 centimeters long. Spadix is about 3.5 centimeters long. Seeds are ovoid, and about 5 millimeters long.

Distribution
- Along small streams in primary forests at low altitudes, often common but endemic
- Common in Isabela, La Union, Pangasinan, Pampanga, Rizal, Bataan, Laguna, and Sorsogon Provinces in Luzon; Mindoro; Palawan; Panay; Leyte; Biliran; Negros; and Mindanao.

- Also reported in the Lan Yu Islands of Taiwan.

Constituents
- Study of rhizomes for secondary metabolites yielded carbohydrates, flavonoids, proteins, sterols, and tannins. Alkaloids were absent. (see study below) (6)

Properties
- Antirheumatic.
- Vulnerary.

Parts used
Rhizomes, leaves.

Uses

Culinary
- Large leaves are extensively used in the Camarines area for wrapping articles of food.
Folkloric
- Rhizomes used as antirheumatic in the form of embrocation. (2)
- Leaves used as vulnerary.

- The Subanen tribe of Lapuyan, Zamboanga del Sur sniff sliced and pounded stems for colds. Outer layer of stems fashioned into a necklace and tied around a child's neck for colds. (3)
Others
- Wrapping food: Large leaves used in the Camarines for wrapping food. (2)

Studies
Antibacterial / Rhizome:
Phytochemical screening of rhizome extract showed mild inhibitory effect against Staphylococcus aureus. Extract showed no inhibition of Escherichia coli, Candida albicans, and Saccharomyces cerevisiae. (see constituents above) (6)

Availability
Wild-crafted.

© Godofredo U. Stuart Jr., M.D.

Updated June 2018 / October 2015

IMAGE SOURCE: Homalomena sp. (emerald gem habit) / File:Starr 070906-8753 Homalomena sp..jpg / Forest & Kim Starr / 6 Sept 2007 / click on photo to go to source page / Wikipedia
OTHER IMAGE SOURCE: Drawing of leaves and flowers / Photograph by: Engler, H.G.A., Das Pflanzenreich, Araceae - Philodendroideae - Philodendreae - Homalomeniae / Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) / Useful Tropical Plants
Additional Sources and Suggested Readings
(1)
Homalomena philippinensis Engl. / Synonyms / The Plant List
(2)
Minor products of Philippine forests / William H. Brown, Vol 1, No 3 / Manila Bureau of Printing 1921
(3)
Ethnobotany of Medicinal Plants Used by the Subanen Tribe of Lapuyan, Zamboanga del Sur / Jhoan Rhea L Pizon, Olg M Nuñeza, Mylene M Uy, W Senarath / Bulletin of Environment, Pharmacoly, and Life Sciences, April 2016; 5(5): pp 53-67
(4)
Homalomena / Wikipedia
(5)
Homalomena / The Plant List
(6)
SECONDARY METABOLITE SCREENING AND ANTIMICROBIAL ACTIVITY OF Homalomena philippinensis Engl. ex Engl. & K. Krause (ARACEAE) RHIZOME EXTRACT / Chinee Anne Marie C Gaba and Zsazsa D Ortilla / Partial Fulfillment of BS Degree in Human Biology: April 2016
It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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