Syzygium glenum—Coopers Creek Satinash, Orange Tamarind, Bushy Tamarind—MYRTACEAE

Syzygium glenum

Link to Images on Flickr.

Habitat— Well developed lowland Rainforest.

Distribution— Endemic to North East Queensland, known only from between the Daintree River and Cape Tribulation area. Grows from sea level to about 100 meters. Rare.

Description— Tree to 25 meters tall.

Local occurrences

The North Coast Regional Botanic Gardens Coffs Harbour and Raintrees Diamond Beach.

Leaves.— Simple, opposite, entire with translucent oil like dots, intramarginal vein present. Leaves narrowly elliptic, elliptic or narrowly ovate, 8.4 to 17.9 by 3.2 to 6.7 cm, 2.4 to 3.4 times as long as wide, base cuneate, obtuse or attenuate, apex acuminate (tip of acumen acute or occasionally rounded), acumen plane, margin revolute, entire, midrib angled or rounded on the abaxial surface, primary and secondary venation distinctly different with the secondaries relatively little developed and not joining the intramarginal vein, primary veins 19 to 42 on each side of the midrib, divergence angle more or less uniform or with the distal veins more acute than the proximal, in the median part of the lamina the veins at an angle of 55 to 70° and 3 to 11 mm apart, intramarginal vein present and 1.6 to 6 mm from the margin, secondary intramarginal vein present and a third is usually present, oil dots visible to the unaided eye in transmitted light, the dots small, sparse. Petiole 1 to 3 cm long.

Syzygium glenum
Syzygium glenum

Inflorescence.— Leafless, among the leaves, terminal or distal axillary, few to many–flowered, paniculate, main axis straight and rigid, 3 to 40 by 1.5 to 17 cm, 1 to 2 mm thick at the mid point; bracteate, the bracts deciduous; bracteoles subtending the lateral flowers of a triad but with the terminal flower ebracteolate, deciduous. Flowers calyptrate (the calyptra formed from fused sepals only, the petals cohere to the calyptra and fall with it), the calyptra 0.75 to 1.5 mm long. Whitish.

Flowering.— February to May.

Fruit.— Pear shaped, depressed globular, 50 to 75 mm long, 55 to 70 mm wide, rusty brown in colour, longitudinally ribbed, apex depressed or flat with a tonsure–like scar. Pericarp hard and leathery, gritty in texture. seeds about 40 to 60 mm diam.

Ripe.— Summer

Syzygium glenum