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Goniothalamus giganteus Hook.f. & Thomson

Goniothalamus giganteus Hook.f. & Thomson

Family

Annonaceae

Synonyms

None

Vernacular Names

Malaysia
Penawar hitam, dedanum, galang hutan
Thailand Paanan chaang (Peninsular).

Geographical Distributions

Goniothalamus giganteus is distributed in Thailand, Peninsular Malaysia, Sumatra and Borneo.

Description

G. giganteus is a tree that can reach measure 10-23 m tall.

The leaves are oblong in shape, measuring about 16-26 cm x 4-6 cm, shortly acuminate, smooth and with measure 0.7-1.5 cm long petiole.

The flowers are in axils of fallen leaves. The pedicel is measure about 2.5-4.5 cm long with 2 bracts at the base. The sepals are ovate, acute, measure about 1 cm long and pubescent outside. The outer petals are broadly ovate to ovate-oblong in shape, measuring about 8-15 cm x 4.5-9 cm, accrescent and yellow tinged green while the inner petals are ovate, acute, measuring 1.5-2 cm long and golden-hairy outside. The stamens are numerous, about 20 elongate carpels, measure about 6-7 mm long, rusty hairs and with 2 ovules.

The monocarp is an oblong, apiculate, tapers into the stalk, with a size of measure 3-4.5 cm x 1.5 cm, granular or warted and with 1-2-seeded.

Ecology / Cultivation

G. giganteus is a common forest species throughout Peninsular Malaysia.

Line Drawing / Photograph

Goniothalamus_giganteus

References

  1. Plant Resources of South-East Asia No. 12 (2): Medicinal and poisonous plants.

 

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