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Singaporandia macrophylla (R. Br. ex Hook.f.) K.M.Wong
| Family Name: | Rubiaceae |
| Synonyms: | Randia macrophylla R. Br. ex Hook.f., Rothmannia macrophylla |
| Common Name: | Angel's Trumpet, Hidung Babi, Purple Trumpet Randa |
Name
Classifications and Characteristics
| Plant Division | Angiosperms (Flowering Seed Plants) (Dicotyledon) |
|---|---|
| Plant Growth Form | Shrub, Tree (Shrubby (1m-5m)) |
| Lifespan (in Singapore) | Perennial |
| Mode of Nutrition | Autotrophic |
| Plant Shape | Shrubby |
| Maximum Height | 3 m |
Biogeography
| Native Distribution | Sumatra, Peninsular Malaysia, and Singapore |
|---|---|
| Native Habitat | Terrestrial (Primary Rainforest, Secondary Rainforest) |
| Preferred Climate Zone | Tropical |
| Local Conservation Status | Native to Singapore (Vulnerable (VU)) |
Description and Ethnobotany
| Growth Form | It is a slender and erect shrub or small tree up to 3 m tall. |
|---|---|
| Foliage | Its opposite, stalked leaves have membranous leaf blades that are narrowly elliptic-oblong, hairless on both surfaces except at the midrib and veins, and 20–30.5 by 4.4 cm. |
| Flowers | Its flowers grow singly or in clusters of 2 at the ends of a twig, are hanging, large, funnel-shaped, white turning pale cream and blotched with purple in the corolla tube, and 10.1–15.2 by 5–7.6 cm at the mouth. |
| Fruit | Its fruit is oblong, green, hairy, and 3.8–5 cm long. |
| Habitat | It grows in the understorey of forests. |
| Associated Fauna | Its flowers are insect-pollinated. |
| Cultivation | It can be propagated by seed. |
| Ethnobotanical Uses | Cultural / Religious: Its juice may be used for blackening teeth. |
Landscaping Features
| Landscaping | It is suitable for parks at shaded, cool sites. |
|---|---|
| Desirable Plant Features | Ornamental Flowers |
| Landscape Uses | Parks & Gardens |
Fauna, Pollination and Dispersal
| Pollination Method(s) | Biotic (Fauna) |
|---|
Plant Care and Propagation
| Light Preference | Semi-Shade |
|---|---|
| Water Preference | Moderate Water |
| Plant Growth Rate | Moderate |
| Rootzone Tolerance | Moist Soils, Well-Drained Soils, Fertile Loamy Soils |
| Propagation Method | Seed |
Foliar
| Foliage Retention | Evergreen |
|---|---|
| Mature Foliage Colour(s) | Green |
| Foliar Type | Simple / Unifoliate |
| Foliar Arrangement Along Stem | Opposite |
| Foliar Attachment to Stem | Petiolate |
| Foliar Shape(s) | Non-Palm Foliage (Elliptical, Oblong) |
| Foliar Venation | Pinnate / Net |
| Foliar Margin | Entire |
| Leaf Area Index (LAI) for Green Plot Ratio | 4.5 (Shrub & Groundcover - Dicot) |
Floral (Angiosperm)
| Flower & Plant Sexuality | Bisexual Flowers |
| Flower Colour(s) | White |
|---|---|
| Flower Grouping | Solitary, Cluster / Inflorescence |
| Flower Location | Axillary |
| Flower Symmetry | Radial |
| Individual Flower Shape | Trumpet-shaped |
Fruit, Seed and Spore
| Mature Fruit Colour(s) | Green |
|---|---|
| Mature Fruit Texture(s) | Hairy / Hirsute |
| Fruit Classification | Simple Fruit |
| Fruit Type |
References
| References | Wong, K.M. & Pereira, J. T.. 2016. A taxonomic treatment of the Asiatic allies of Rothmannia (Rubiaceae: Gardenieae), including the new genera Ridsdalea and Singaporandia. SANDAKANIA. 21. 21 - 64 |
|---|
Image Repository
Others
| Master ID | 1102 |
|---|---|
| Species ID | 2395 |
| 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. |