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

Plant Division	Angiosperms (Flowering Seed Plants) (Dicotyledon)
Plant Growth Form	Tree (Big (>30m))
Lifespan (in Singapore)	Perennial

Mode of Nutrition	Autotrophic
Plant Shape	Irregular
Maximum Height	30 m to 40 m

Native Distribution	Sumatra, Peninsular Malaysia, Singapore, and Borneo
Native Habitat	Terrestrial (Primary Rainforest, Freshwater Swamp Forest)
Preferred Climate Zone	Tropical

Local Conservation Status

Native to Singapore (Critically Endangered (CR))

Growth Form	This is a lofty tree up to 40m tall, with conspicuous prop roots at the base of the trunk.
Foliage	Alternate, stalked leaves possess finely toothed leaf blades that are oval or oval-oblong to drop-shaped, and 10-46 by 6-28cm, with venation that resembles a close network. Leaf blades also have heart-shaped or narrowed or rounded bases. The undersides are velvety and golden brown when they wither.
Flowers	Stalked flowers are up to 8.1cm wide, with large, yellow petals. They develop in a loose, 3 to 15-flowered cluster that is up to 13 by 13cm, at the ends of leafless twigs or twigs with new leaves.

Fruits	The greenish-yellow fruits are slightly flattened and roundish, and up to 3.8cm wide. Its seeds are glossy black, and 3.5 by 2.5mm, with a reduced, fleshy covering.
Habitat	It grows in lowland primary forests, on swampy ground on wet to rather dry soil.
Associated Fauna	Its flowers are insect-pollinated. The flowers and possibly the fruits, are also eaten by gibbons and monkeys.
Cultivation	It can be propagated by seed.
Etymology	Latin Dillenia, commemorating Johann Jacob Dillenius (1687–1747), Professor of Botany at Oxford, author of Historia Muscorum and Hortus Elthamensis; Latin reticulata, conspicuously net-veined, probably referring to the venation of the leaf blades

Landscaping	This tree has attractive, large, yellow-petalled flowers. The prop roots at the base of the trunk make this an interesting addition to landscape design. Its tolerance for damp soil makes it suitable for waterlogged sites that most plants do not favour.
Desirable Plant Features	Ornamental Flowers, Ornamental Foliage, Ornamental Form
Plant & Rootzone Preference - Tolerance	Moist Soils, Waterlogged Soils (Drains Site, Does not Drain Site), Fertile Loamy Soils

Landscape Uses

General, Parks & Gardens, Riverine, Pond / Lake / River, Marsh / Bog

Pollination Method(s)	Biotic (Fauna) (Vertebrates (Other Mammal))
Seed or Spore Dispersal	Biotic (Fauna)

Light Preference	Full Sun
Water Preference	Moderate Water, Lots of Water
Plant Growth Rate	Moderate

Maintenance Requirements	Moderate
Propagation Method	Seed

Foliage Retention	Evergreen
Mature Foliage Colour(s)	Green
Mature Foliage Texture(s)	Hairy / Hirsute

Prominent Young Flush Colour(s)	Orange, Red
Young Flush Texture(s)	Hairy / Hirsute
Foliar Type	Simple / Unifoliate
Foliar Arrangement Along Stem	Spiral
Foliar Attachment to Stem	Petiolate
Foliar Shape(s)	Non-Palm Foliage (Obovate, Elliptical, Oblong)
Foliar Venation	Pinnate / Net
Foliar Margin	Serrate / Toothed
Leaf Area Index (LAI) for Green Plot Ratio	3.0 (Tree - Intermediate Canopy)

Flower & Plant Sexuality 1	Bisexual Flowers
Flower Colour(s)	Yellow / Golden
Flower Grouping	Cluster / Inflorescence

Flower Location	Axillary
Flower Symmetry	Radial

Mature Fruit Colour(s) - Angiosperms and Gymnosperms	Green, Yellow / Golden
Fruit Classification	Simple Fruit
Fruit Type 1	Fleshy Fruit

Images

Master ID	1553
Species ID	2846
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.