View source for Tristania neriifolia

{{SPlantbox
|familia=Myrtaceae
|genus=Tristania
|species=neriifolia
|taxo_author=R.Br.
|common_name=Dwarf water gum, Water Gum
|name_ref=Flora - A Gardener's Encyclopedia
|habit=tree
|habit_ref=Wikipedia
|Max ht box=15
|Max ht metric=ft
|height_ref=Flora - A Gardener's Encyclopedia
|Max wd box=7
|Max wd metric=ft
|width_ref=Flora - A Gardener's Encyclopedia
|lifespan=perennial
|exposure=sun
|sun_ref=Flora - A Gardener's Encyclopedia
|features=flowers
|flower_season=early summer, mid summer, late summer
|flower_ref=Flora - A Gardener's Encyclopedia
|flowers=orange, yellow
|Temp Metric=°F
|min_zone=10
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=11
|image=Tristania neriifolia Ourimbah.jpg
|image_width=200
|image_caption=Tristania neriifolia
}}
'''''Tristania''''' is a [[monotypic]] genus in the myrtle family [[Myrtaceae]], native to [[New South Wales]], [[Australia]], closely related to ''[[bottlebrush|Callistemon]]''. The genus had a number of species, but some have been reclassified as ''[[Lophostemon]]'' and ''[[Tristaniopsis]]''.

The sole species in the genus is ''T. neriifolia''.

It is a small [[tree]], with dense branching. The [[leaf|leaves]] are [[evergreen]], opposite, simple, lanceolate, from 5-9 cm long and 1 cm broad. The [[flower]]s are produced in dense clusters of 3-15 together; each flower is 1-1.5 cm diameter, with five small yellow petals and numerous conspicuous stamens.

It is commonly known as the water gum.

{{Inc|
Tristania (in honor of Jules M. C. Tristan, 1776-1861, a French botanist). Myrtaceae, Tall trees or shrubs, evergreen, cultivated as greenhouse shrubs in Europe and hardy in California and Florida.

Leaves alternate or somewhat whorled and approximate at the ends of the branches, rarely opposite: fls. usually rather small, yellow or white, in axillary, peduncled cymes; calyx-tube turbinate-campanulate, limb with 5 short segms.; petals 5; stamens numerous; ovary inferior or semi-superior.—About 23 species, Malaya. New Caledonia, and Austral. Prop. by half-ripened cuttings in sand under glass, or by seeds.
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