|Syzygium francisii subsp. var.||Giant water gum|
Syzygium francisii is a common Australian tree, growing from near Morisset, New South Wales (33° S) to Gladstone, Queensland (23° S). Common names include Giant Water Gum, Rose Satinash, and Francis Water Gum. The habitat of Syzygium francisii is rainforest on basaltic or fertile alluvial soils.
Syzygium francisii is a medium to large size tree, occasionally reaching 45 metres in height and a 150 cm in trunk diameter. The tree's crown appears dark and dense.
The bark is a scaly reddish light brown, with depressions caused by the shedding of scales of bark. Prominent buttresses form at the base.
The leaves are opposite, simple, entire, 4 to 8 cm long drawn out into a long point at the tip. The leaf margin is often wavy, new growth pinkish.
Flowers: white in panicles. Flowers small, less than 6 mm long. Flowering period September to December. The fruit matures from January to April, being a flattened berry, a common shape of many Syzygium, the colour is a pale blue, lilac to purple. The flesh is dry and unpalatable to taste.
Seed germination is relatively easy and quick, commencing at 20 days. Soaking of the seeds is recommended to drown insect larvae. Fruit are eaten by many types of rainforest birds.
Pests and diseases