Syzygium aqueum (Burm.F.) Alston

Watery roseapple (en)

Species

Angiosperms > Myrtales > Myrtaceae > Syzygium

Characteristics

A shrub or small tree. It mostly occurs as just a small shrub with branches near the base. It is 5-8 m tall. But it can occur as a tree up to 10-30 m high with a short crooked trunk. The trunk can be 70 cm across. The twigs are angular and carry simple opposite leaves. The leaves are somewhat narrow and pointed at both ends and they clasp the stem without a stalk. They are stiff. They are from 5 to 23 cm long by 6 cm wide. They have a heart shaped base. The leaves have many oil dots. The flowers are yellowish green. They are about 3 cm across. The flowers occur in many flowered clusters in the angles of leaves. They can also be on the ends of branches and on side shoots from stems. Flowers and fruit are slightly scented. The fruit is a fleshy yellow, white or red berry which is bell shaped. The fruit is about 3-5 cm across. It has a crater in the end with a long thread in it. The fruit is waxy and crisp and is often seedless. When seeds occur there can be one or more seeds. The fruit is edible. The fruit vary a lot and so presumably does the food composition.
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Tree upto 18(–23) m tall with short crooked ribbed bole and brown flaky bark.. Leaves crimson when young, oblong to elliptic, 4.5–23 cm long, 1.5–11 cm wide, obtuse, retuse or shortly acuminate at the apex, cuneate, rounded or slightly subcordate at the base, coriaceous; petiole 1–5 mm long.. Flowers white, ± 10 in terminal and axillary cymes, subsessile.. Calyx-tube 1.5–3 cm long; lobes ovate, up to 6 mm wide.. Petals pinkish white, oblong, up to 1.2 cm long, 8 mm wide, obtuse.. Stamens pink, up to 1.5 cm long; anthers white.. Fruit red, globose, 2 cm diameter, crowned with prominently necked persistent calyx-ring.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 15.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It occurs in many tropical countries. It suits the hot, wet tropical lowlands. In grows in lower montaine forest. It grows from sea level to 1600 metres near the equator. It grows well in wet places but needs a well drained soil. They can grow in poor alkaline soils. They are found in Samar in the Philippines growing in areas of shrub and forest at low and medium altitudes. Plants are sensitive to frost. It suits hardiness zones 10-12.
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Found wild in Australia as an understorey tree in the dry, seasonal rain forest, monsoon forest and gallery forest, usually at elevations below 100 metres.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

The fruit are eaten raw. They are also used for drinks or syrup.
Uses animal food environmental use food material medicinal timber wood
Edible fruits seeds
Therapeutic use Anti-bacterial agents (bark), Abdominal pain (leaf), Anti-bacterial agents (leaf), Dysentery (leaf), Malaria (leaf), Pneumonia (leaf), Anti-bacterial agents (root), Astringent (unspecified), Thrush (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Trees can be grown fairly easily from cuttings but can also be grown by air layering or budding. Buds do not always continue to grow successfully. A spacing of 6-8 metres between trees is suitable. Where seeds occur, plants can be grown from fresh seed. Fruit from these plants can be more oily and acidic. It can be grown as a hedge with heavy pruning.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Syzygium aqueum leaf picture by Java (cc-by-sa)
Syzygium aqueum leaf picture by Petrus.LandArch Petrus Carmei Bago (cc-by-sa)
Syzygium aqueum leaf picture by Petrus.LandArch Petrus Carmei Bago (cc-by-sa)

Flower

Syzygium aqueum flower picture by Chee Keong Chan (cc-by-sa)
Syzygium aqueum flower picture by Chee Keong Chan (cc-by-sa)
Syzygium aqueum flower picture by Chee Keong Chan (cc-by-sa)

Fruit

Syzygium aqueum fruit picture by Petrus.LandArch Petrus Carmei Bago (cc-by-sa)

Distribution

Syzygium aqueum world distribution map, present in Australia, Bangladesh, Brazil, Brunei Darussalam, Micronesia (Federated States of), Indonesia, India, Cambodia, Lao People's Democratic Republic, Sri Lanka, Maldives, Myanmar, Malaysia, Philippines, Papua New Guinea, Thailand, Trinidad and Tobago, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:601415-1
WFO ID wfo-0000318257
COL ID 7BBL3
BDTFX ID -
INPN ID 447409
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Malidra aquea Syzygium aqueum Jambosa aquea Jambosa calophylla Jambosa javanica Jambosa madagascariensis Jambosa subsessilis Myrtus timorensis Cerocarpus aqueus Eugenia aquea Eugenia obversa Eugenia nodiflora Eugenia callophylla Syzygium obversum