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Pterospermum javanicum


Pterospermum javanicum Jungh.

Family Name: Malvaceae
Common Name: Melerang, Bayur, Letop- letop, 爪哇翅子树


Family Name
Genus Epithet
Species Epithet
Name Authority
Name Status (botanical)
Common Names

Classifications and Characteristics

Plant Division Angiosperms (Flowering Seed Plants)
Plant Growth Form Tree
Lifespan (in Singapore) Perennial
Mode of Nutrition Autotrophic


Native Distribution Indonesia
Native Habitat Terrestrial
Preferred Climate Zone Tropical
Local Conservation Status Non-native

Description and Ethnobotany

Growth Form A medium size evergreen tree that is strongly buttressed. 
Foliage Leaves (8 to 14 cm long) are asymmetrical and unequal at the base. Leaves are almost glabrous and glossy on the upper side and densely hairy on the underside. Stipules are present and petiole is densely tomentose.  
Flowers White large showy flowers on velvety peduncle, occurring at the axils of the leaves.  Pedicel is short, roughly about the length of the petioles and rarely longer. 
Fruit Fruits occur as capsule. 

Plant Care and Propagation

Light Preference Full Sun, Semi-Shade
Water Preference Moderate Water
Plant Growth Rate Moderate
Propagation Method Seed


Foliage Retention Evergreen

Floral (Angiosperm)

Flower Colour(s) Cream / Off-White

Image Repository



Master ID 30312
Species ID 4621
Flora Disclaimer The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes.
Species record last updated on: 11 October 2022.