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Syzygium myrtifolium (Roxb.) Walp.
Family Name: | Myrtaceae |
Synonyms: | Syzygium sinubanense, Syzygium campanulatum var. longistylum, Eugenia parva, Syzygium campanellum, Eugenia myrtifolia, Eugenia oleina, Eugenia sinubanensis, Syzygium campanulatum |
Common Name: | Kelat Oil, Kelat Paya, Red Lip, 红楠木 |
Name
Classifications and Characteristics
Plant Division | Angiosperms (Flowering Seed Plants) (Dicotyledon) |
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Plant Growth Form | Shrub, Tree (Medium (16m-30m), Small (6m-15m), Shrubby (1m-5m)) |
Lifespan (in Singapore) | Perennial |
Mode of Nutrition | Autotrophic |
Plant Shape | Shrubby |
Maximum Height | 2 m to 20 m |
Biogeography
Native Distribution | Northeast India, Myanmar, Thailand, Peninsular Malaysia, Singapore, Sumatra, Borneo and the Philippines. |
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Native Habitat | Terrestrial (Coastal Forest, Primary Rainforest, Secondary Rainforest, Riverine) |
Preferred Climate Zone | Tropical, Sub-Tropical / Monsoonal |
Local Conservation Status | Native to Singapore (Critically Endangered (CR)) |
Description and Ethnobotany
Growth Form | It is a tree with a dense bushy crown, up to 20 m tall. |
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Foliage | Its opposite, stalked leaves have leaf blades that are elliptic to lanceolate, about 7.5 cm long and 2.5 cm wide. Young leaves emerge reddish, turning red-brown then green. |
Flowers | Its powderpuff-like flowers are cream to white in colour, borne on a branched inflorescence, up to 4 cm long. |
Fruit | Its spherical to ellipsoid fruits are dark purple or black berries, about 9 mm wide. |
Habitat | It grows in lowland primary and secondary forests, in coastal forests, near freshwater swamps and along riverbanks. |
Similar | Same form and usage as the relatively new cultivar or variety tentatively known as Syzygium myrtifolium cultivar (dark red leaves), or named as 'Katsura' by certain Malaysian suppliers. This form produces dark red young foliar flush, as well as bright pink inflorescences. |
Associated Fauna | Its flowers are insect-pollinated, and its fruits are eaten by birds. |
Cultivation | Hardy plant, tolerates poor soils and salt spray, relatively pest-free. Does not tolerate drought. Tolerates partial shade, but exhibits slower growth, as well as sparser and less intense flush colouration. Takes pruning very well, can be trimmed regularly into various shapes, after which the plant sends out new foliar flush all over the pruned surfaces. Sensitive to transplanting, with fairly high mortality rate, transplanted specimens tend to shed leaves and require a period of time to recover from shock. Propagate by stem cuttings, air-layering or seeds. |
Etymology | Genus epithet 'Syzygium' derived from 'syzygos' (Greek for 'joined'), alluding to the opposite paired leaves. Species epithet 'myrtifolium' means myrtle-leaved, describing how the plant's foliar shape and texture resemble the leaves of Myrtus. |
Landscaping Features
Landscaping | It is suitable for planting along streetscapes, parks and gardens as a tree or as a dense hedge. Matured fruits may cause stains when dropped. Having a short distance between tree and pavement will minimise staining. |
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Desirable Plant Features | Ornamental Foliage, Ornamental Fruits, Fragrant (Flowers, Foliage) (Day) |
Landscape Uses | General, Suitable for Roadsides, Coastal, Riverine, Hedge / Screening, Topiary, Suitable for Bonsai, Container Planting, Parks & Gardens |
Thematic Landscaping | Naturalistic Garden, Formal Garden |
Fauna, Pollination and Dispersal
Fauna Pollination Dispersal Associated Fauna | Bird-Attracting (Fruits), Butterfly-Attracting |
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Pollination Method(s) | Biotic (Fauna) |
Seed or Spore Dispersal | Biotic (Fauna) |
Plant Care and Propagation
Light Preference | Full Sun |
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Water Preference | Moderate Water, Lots of Water |
Plant Growth Rate | Moderate |
Rootzone Tolerance | Fertile Loamy Soils, Well-Drained Soils, Saline Soils / Salt Spray, Waterlogged Soils (Drains Site), Moist Soils |
Maintenance Requirements | Moderate |
Propagation Method | Seed, Stem Cutting, Marcotting, Air-Layering |
Foliar
Foliage Retention | Evergreen |
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Mature Foliage Colour(s) | Green |
Mature Foliage Texture(s) | Smooth, Glossy / Shiny |
Foliar Type | Simple / Unifoliate |
Foliar Arrangement Along Stem | Opposite |
Foliar Attachment to Stem | Petiolate |
Foliar Shape(s) | Non-Palm Foliage (Elliptical) |
Foliar Venation | Pinnate / Net |
Foliar Margin | Entire |
Leaf Area Index (LAI) for Green Plot Ratio | 4.5 (Shrub & Groundcover - Dicot) |
Prominent Young Flush Colour(s) Remarks | Red, Orange |
Non - Foliar and Storage
Trunk Type (Non Palm) | Woody |
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Stem Type & Modification | Woody |
Root Type | Underground (Tap Root, Fibrous Root) |
Floral (Angiosperm)
Flower & Plant Sexuality | Bisexual Flowers |
Flower Colour(s) | White, Cream / Off-White |
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Flower Grouping | Cluster / Inflorescence |
Flower Location | Axillary |
Flower Symmetry | Radial |
Flowering Period | Rarely |
Flowering Habit | Polycarpic |
Fruit, Seed and Spore
Mature Fruit Colour(s) | Red, Black |
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Mature Fruit Texture(s) | Glossy / Shiny |
Fruit Classification | Simple Fruit |
Fruit Type |
Image Repository
Others
Master ID | 1863 |
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Species ID | 3156 |
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. |