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Pentaphragma begoniifolium (Roxb. ex Jack) Wallich ex G. Don

Pentaphragma begoniifolium (Roxb. ex Jack) Wallich ex G. Don




Phyteuma begoniifolium Roxb. ex Jack

Vernacular Names

Malaysia Pokok salang-suang (Peninsular).
Thailand Phak paa, huu mee (Peninsular).

Geographical Distributions

P. begoniifolium is restricted to southern Burma (Myanmar), peninsular Thailand and the northern part of Peninsular Malaysia.


P. begoniifolium is a perennial, succulent herb that can reach up to 25 cm tall.

Leaves are arranged alternate, simple, conspicuously asymmetrical, obliquely ovate to obliquely lance-shaped or obliquely reniform, 10-30 cm x 6-13.5 cm, base is rounded to cordate on one side, strongly excised-concave on other side, apex is shortly acuminate, finely but sharply serrate and fleshy. The petiole is 2-4 cm long while stipules are absent.

Inflorescence is terminal or axillary, usually solitary, 4-5 cm long, at first dense and scorpioid, ultimately lax and almost straight. Flowers are bisexual, 5-merous and subtended by orbicular-obovate 5-9 mm long bracts. The sepal tube is 4-5 mm x 3 mm, sparsely pilose, unequal lobes which are ovate to orbicular, 2-2.5 mm long.  Petal is 3 mm long with short tube, spatulate-obovate lobes and slightly fleshy. The stamens are alternate with petal lobes. Ovary is inferior with 2-celled, short style and massive stigma.  

Fruit is an ellipsoid, 8-9 mm x 3-4 mm indehiscent berry and many-seeded.

Seeds are ovoid and minute. 

Ecology / Cultivation

P. begoniifolium occurs in lowland rain forest, often on rocks along streams, from sea-level up to 600 m altitude.

Line Drawing / Photograph


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  1. Plant Resources of South-East Asia No.12(3): Medicinal and poisonous plants 3.

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