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Family Asteraceae
Badok
Laphangium luteoalbum (L.) Tzvelev
CUDWEED

Scientific names Common names
Chrysocoma villosa Lour. Badok (Ilk.)
Dasyanthus conglobatus (Lam.) Bubani Bunut (Ig.)
Flaginella luteoalba (L.) Opiz Onanat (Ig.)
Gnaphalium depressum Steud. Tugong (If.)
Gnaphalium dichotomum Blanco Cudweed (Engl.)
Gnaphalium helichrysoides Wedd. Everlasting cudweed (Engl.)
Gnaphalium luteo-fuscum Webb. Weedy cudweed (Engl.)
Gnaphalium luteoalbum L..  
Gnaphalium nanum Kunth                    [Illegitimate]  
Gnaphalium pallidum Lam.  
Gnaphalium trifidum Thunb.  
Laphangium luteoalbum L.  
Pseudognaphalium luteoalbum (L.) Hilliard & B.L.Burtt.  
Gnaphalium luteoalbum L. is a synonym of Laphangium luteoalbum (L.) Tzvelev The Plant List
Laphangium luteoalbum (L.) Tzvelev is an accepted name The Plant List

Botany
Badok is a woolly, extremely variable annual herb, 10 to 40 centimeters in height. Leaves are woolly on both surfaces, linear-spatulate or oblong-spatulate, 2.5 to 5 centimeters long, 0.4 to 1 centimeter wide, and blunt-tipped. Inflorescences are terminal, bearing crowded clusters of glistening, yellow heads. Involucral bracts are oblong. Achenes are tubercled or have minute curved bristles.

Distribution
- In open places, chiefly at medium altitudes, ascending to 2,400 meters.
- In Ifugao, Lepanto, Bontoc, Benguet Subprovinces; in Cagayan, Pangasinan and the Camarines Provinces in Luzon.
- Native of Europe and Asia.
- Occurs in India to China, Japan and Taiwan, and southward to Borneo and Australia.

Properties
- Leaves considered astringent, cholagogue, diuretic, febrifuge, hemostatic and vulnerary.

Constituents
- Study has yielded protective flavonoids, calycopterin and 3'-methoxycalycopterin from the leaf wax.
- Crude extracts yielded 5,4′-dihydroxy-6-methoxy-7-O-β-glucopyranosideflavone (hispidulin-7-O-glucopyranoside) (1) and stigmasterol-3-O-β-glucopyranoside (2).
(See study below) (6)

Parts used
Leaves.

Uses

Folkloric
- In the Punjab leaves are used as vulnerary and astringent.
- In Pakistan, used as anti-diarrheal.
- Infusion of aerial parts used as emmenagogue.
- Used as a counter-irritant for gout.
- In Bangladesh, plant is used by the Garo tribe, crushed along with dried fish and applied as a poultice to heal fractured bones.
Also, used by the Kavirajes of Chalna as tonic, and for tumor, gout, and dermatitis. (3)

Studies
Flavonoids / Antiseptic:
Study of aerial parts yielded flavonoid compounds 5, 7, 3, 4 tetrahydroxy flavone; 5, 3, 4 trihydroxy flavonol and 3, 5 dihydroxy flavonol. Flavonoids were investigated as antiseptic against 4 bacterial and 2 pathogenic fungal strains. (4)
Antifungal:
Study of acetone crude extract of leaves showed strong antifungal activity when tested against pathogenic plant fungi in vitro. No cytotoxicity of isolated compounds against Vero kidney cells was observed. (see constituents above) (6)

Availability
Wild-crafted.


Last Update October 2016

IMAGE SOURCE: / 2 Photos / Asteraceae : Gnaphalium luteoalbum / habit of flowering plant / Copyright © 2010 by P.B. Pelser (contact: pieter.pelser@canterbury.ac.nz) [ref. DOL19419] / click on image to go to source page / Non-Commercial Use / Phytoimages.siu.edu
OTHER IMAGE SOURCE: Gnaphalium luteo-album / Walter Hood Fitch - Illustrations of the British Flora (1924) / Permission granted to use under GFDL by Kurt Stueber. Source: www.biolib.de / GNU Free Documentation License / alterVISTA

Additional Sources and Suggested Readings
(1)
Review: Advances in flavonoid research since 1992 / Jeffry Harborne, Christine Williams / Phytochemistry 55 (2000) 481-504
(2)
PLANTS OF POTENTIAL MEDICINAL VALUE / uicnmed.org
(3)
Medicinal plants of the Garo tribe inhabiting the Madhupur forest region of Bangladesh / Manzur-ul-Kadir Mia, Mohammad Fahim Kadir et al / American-Euras ian Journal of Sus tainable Agriculture, 3(2): 165-171, 2009
(4)
Biochemical studies on Gnaphalium luteo album L. 2.-Flavonoids content [Egypt] / Hassan, R.A. (Mansoura Univ. (Egypt). Faculty of Agriculture) / Journal of Agricultural Sciences, Mansoura Univ. (1988)
(5)
A SURVEY OF MEDICINAL PLANTS USED BY KAVIRAJES OF CHALNA AREA, KHULNA DISTRICT, BANGLADESH / Mohammed Rahmatullah et al / Afr. J. Trad. CAM (2010) 7 (2): 91 - 97
(6)
In vitro antifungal activity of the acetone extract and two isolated compounds from the weed, Pseudognaphalium luteoalbum / M.A. Aderogba, L.J. McGaw, V.P. Bagla, J.N. Eloff, B.M. Abegaz / South African Journal of Botany, Volume 94, September 2014, Pages 74–78
(7)
Laphangium luteoalbum / Synonyms / The Plant List

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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