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Api-api
bulu
Avicennia rumphiana
Family Acanthaceae
updated
Jan 2013
Where seen? This tree with pencil roots and velvety furry
spoon-shaped leaves is sometimes seen in our mangroves, but is not
as commonly encountered as Avicennia alba.
It is found mainly in sandy or firm silt substrate of the mid to high
water mark. It is considered among the largest of Avicennia
species and it endemic to Southeast Asia. It can be common to very
common where it is found, but it has a restricted range. It is also
known as Avicennia lantana.
Features: Tree up to 30m tall
and 3m girth, but usually much smaller. Bark dark grey and smooth.
Pencil-like pneumatophores, often with buttress roots.
Leaves often spoon-shaped, but not always (8-10cm long). Green above,
below olive or brownish with a velvety or furry texture. Young leaves
in a pair are velvety - like rabbit ears.
Flowers large orange-yellow (1cm) in a tight cluster that is more
or less globular in shape. Very hairy outer petals and calyx. The
flowers are said to be fragrant. The flower stalks are squarish, but
stems not squarish all the way down.
Fruit oval (1.5-2cm long) woolly often wrinkled. Contains
one seed.
Human uses: According to Giesen,
the seeds are boiled and eaten and in some places sold in markets
as vegetables. The fragrant flowers produce some of the best honey
when collected by bees. The timber is used for buildings. It is rarely
used to make charcoal and is used as firewood only to smoke fish or
rubber. This fast growing mangrove tree is among the few used in mangrove
replanting to protect coastlines.
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Pulau Semakau,
Feb 09
Pulau Semakau,
Feb 09
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Leaves underneath white and velvety.
Chek Jawa, Sep 03
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Large flowers, crowded together. Flower stalk squarish NOT to leaf-bearing
portions.
Pulau Semakau, Jan 09
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Fruits rounded, usually wrinkly,
tips not so pointed.
Chek Jawa, Sep 03
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Young leaves
velvety - like rabbit ears.
Pulau Semakau, Feb 09
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Furry stem, calyx
and outer petals.
Chek Jawa, Sep 03
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Pulau Ubin, Jun 09
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Stilt roots on
old tree.
Sungei Pandan, Jun 09
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Eroded roots.
Chek Jawa, Aug 09
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Pulau Semakau,
Feb 09
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Api-api
bulu on Singapore shores |
Links
References
- Hsuan Keng,
S.C. Chin and H. T. W. Tan. 1990, The
Concise Flora of Singapore: Gymnosperms and Dicotyledons.
Singapore University Press. 222 pp.
- Tomlinson,
P. B., 1986. The
Botany of Mangroves
Cambridge University Press. USA. 419 pp.
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