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Family Gramineae
Kogon-lake
Imperata exaltata Brogn.
PLUME GRASS

Scientific names Common names
Imperata exaltata Brogn.     (Unplaced) Unresolved Gogon (Bik.)
Saccharum exaltatum Roxb. Kogon (Tag., Bis., Sul.)
  Pandang-lubuk (Sul.)
  Paraugutau (Sub.)
  Kogon-lake (Tag.)
  Plume grass (Engl.)
Imperata exaltata (Roxb.) Brongn. is an unresolved name but some data suggest that it is synonymous with Saccharum exaltatum Roxb. The Plant List
Saccharum exaltatum Roxb. is an unresolved name. The Plant List

Botany
Kogon-lake is a grass, much larger and taller than kogon (Imperata cylindrica). Stem grows up to 2 meters high. Leaves are larger and longer than kogon. Panicles are 30 to 45 centimeters long.

Distribution
- Similar in habitat to Imperata cylindrica (Linn.) Beauv. var. Koenigii, but much less common.
- Occurs from central Luzon to Palawan and Mindanao.
- Also occurs from Java to the Moluccas.

Parts used
Fresh roots.

Uses

Folkloric
- Decoction of fresh roots taken internally for diarrhea due to indigestion.
- Decoction of roots with sugar prescribed for gonorrhea.

Studies
Analgesic Effect:
Petiveria lliacea (tipi) is popularly known as ananti-rheumatic medicine. Cross-over double-blind trial evaluated the analgesic effect of tipi tea in 14 patients with hip and knee osteoarthritis. Imperata exaltata (sape) was used as placebo tea. While taking tipi or placebo tea patients experienced statistically significant improvement in pain on motion and pain at night. At the conclusion of the study, 7 patients preferred tipi tea and 6 preferred placebo tea. Results showed both teas succeeded in the aim of relieving pain. (2)

Availability
- Wild-crafted.

Updated August 2020 / November 2016

                                                    PHOTOS / ILLUSTRATIONS
IMAGE SOURCE: Photograph / Imperata arundinacea / :Sphl / CC by SA 3.0 / Wikipedia
OTHER IMAGE SOURCE: / File:Fruit of Syzygium samarangense / Wax apple / Plate from book / Flora de Filipinas / Francisco Manuel Blanco (OSA) / Public Domain / Wikimedia Commons

Additional Sources and Suggested Readings
(1)
Imperata exaltata / The Plant List

(2)
The effectiveness of tipi in the treatment of hip and knee osteoarthritis: a preliminary report. / Ferraz, Marcos Bosi; Pereira, Ronaldo Borges; Andrade, Luis Eduardo Coelho and Atra, Edgard / Memorias do Instituto Oswaldo Cruz, 1991; Vol 86, Suppl 2: pp 241-243 / ISSN 1678-8060 / https://doi.org/10.1590/S0074-02761991000600054.

                                                                          DOI
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. (Citing and Using a (DOI) Digital Object Identifier)

                                                            List of Understudied Philippine Medicinal Plants

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