Classifications and Characteristics
|Angiosperms (Flowering Seed Plants) (Dicotyledon)
|Plant Growth Form
|Climber, Vine & Liana
|Lifespan (in Singapore)
|Mode of Nutrition
|3 m to 3.5 m
|Local Conservation Status
|Non-native (Spontaneous (Casual))
Description and Ethnobotany
|Evergreen vine or shrub with a twining growth habit, up to 7 m in length.
|Smooth, dark green glossy leaves are elliptic with entire leaf margin, measuring up to 15 cm long and 7 cm wide. Leaves are deeply veined and have a long pointed tip (acuminate apex). Leaf base is obtuse or rounded. Leaves are arranged oppositely along the stem.
|Woody, quadrangular, puberulent (hairy).
|Flowers are composed of 4 white, ovate calyces and 5 dark red, obovate petals and 5 white, long stamens. The calyces form a pyramidal shape with the tips hanging downwards.
|Fruits are drupe-like, black. Seeds oblong.
|Found in disturbed areas, wet lower montane forests and weedy flats. It is mostly planted as ornamental in cultivated areas.
|Plant in slightly acidic to neutral, well-drained soil with 0.5 - 0.6 m of space between individuals. The soil should be kept moist, but not soggy. This species grows best in a humid environment. Generously feed with a fertilizer containing micronutrients. A slow-release fertilizer can be applied bimonthly or a liquid soluble fertilizer monthly. Adequate calcium is required for optimal flowering and may be added to the soil mix as crushed egg shells. Propagate by woody stem cuttings or suckers.
|The genus Clerodendrum comes from Greek word meaning chance-tree. The specific epithet thomsoniae is named in honour of Thomas Thomson, a Scottish doctor who was superintendent of the Calcutta Botanic Garden.
|Desirable Plant Features
Plant Care and Propagation
|Plant Growth Rate
|Fast to Moderate
|Mealybugs and whiteflies.
|Mature Foliage Colour(s)
|Mature Foliage Texture(s)
|Prominent Young Flush Colour(s)
|Young Flush Texture(s)
|Simple / Unifoliate
|Foliar Arrangement Along Stem
|Foliar Attachment to Stem
|Pinnate / Net
|Foliar Apex - Tip
|Rounded / Obtuse
|Flower & Plant Sexuality
|Cluster / Inflorescence
Fruit, Seed and Spore
|Mature Fruit Colour(s)
|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.