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CAT-00009

Blue tongue

Melastoma affine

Blue tongue main photo

Catalog fields

Genus
Melastoma
Photo
Not recorded
Edible
Yes
layout
double
Habitat
Grows in a wide range of habitats, but generally in wet areas; found in disturbed areas in rainforest, and swampy or wet areas in open forest, woodland or heath. Reproductive attributes for this species are provided by Gross (2005). Fruit eaten by Brush-turkeys, Double-eyed Fig-parrots and Lewin's Honeyeaters (Cooper & Cooper 2004: 282).
Published
Yes
Food group
Fruit
Latin name
Melastoma affine
Fruit photo
Not recorded
Plant title
Blue tongue
Source URLs
https://profiles.ala.org.au/opus/foa/profile/Melastoma%20affine | https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?lvl=sp&name=Melastoma~affine&page=nswfl | https://connected.pmhc.nsw.gov.au/bloged/native-plant-of-the-month-melastoma-affine/ Open source ↗ Open source 2 ↗ Open source 3 ↗
Catalogue ID
CAT-00009
Mature width
Not confirmed
Native range
Extends from the Kimberley, Western Australia, around the north and east coasts to near Kempsey, northern New South Wales. Also from India and southeast Asia through Malesia to New Guinea.
Plant family
Melastomataceae
Supplier SKU
MELAFF
Listing group
Original garden variety
Mature height
To 2 m
Native states
NSW, NT, QLD, WA
Original list
Yes
Research date
10/10/2026
Research notes
Width unverified; nursery/PlantNET name retained; Australian range given, not complete global range. Seasons vary with climate, location, cultivar and plant maturity.
Evidence status
Nursery food-use source; preparation detail review pending
Fruiting season
After flowering; regional timing not yet confirmed
Background photo
Not recorded
Edible component
Ripe fruit pulp
Flowering season
Spring-summer
Brief description
Hairy prominently veined leaves; purple-mauve flowers.
Drought tolerance
Low (inferred); best with good water supply.
Preparation notes
Confirm species identification, the specified edible part, ripeness and species-specific preparation before use.
Flower description
Large mauve-purple flowers with prominent stamens; individual blooms are short-lived.
General cultivation
General guidance (qualitative): Sun with ample water for best flowering; avoid extended drying.
Botanical description
Bushy shrub to 3 m high. Leaves: lamina elliptic to ovate to narrowly ovate, 4–12 (–15) cm long, 1–6.5 cm wide, with stiff, ± appressed hairs, 3–5-veined; petiole 0.5–2 cm long. Inflorescence terminal or subterminal, cymose, fairly crowded, to 7-flowered, sometimes more. Hypanthium c. 5–7 mm long and 4–5 mm diam., densely covered with flattened often fimbriate scales 0.5–2.5 mm long. Calyx lobes triangular to lanceolate or oblanceolate, moderately to densely covered with scales and a few hairs, alternating with denticles. Petals purple to mauve (or white). Stamens 10; larger stamens with anthers 5–6 mm long, connective prolongation 6–7 mm long, and bilobed appendage 1–2 mm long; smaller stamens with anthers 5–6 mm long, connective prolongation less than 0.5 mm long, and bilobed appendage 0.5 mm long. Ovary summit densely pubescent. Fruit campanulate to urceolate, 8–14 mm long, 8–14 mm diam., pink or red, with stiff bristles or scales.
Other botanical names
Not recorded
Attracts birds and bugs
Native buzz-pollinating bees; pollen-rich flowers with no nectar.
Flora of Australia profile
https://profiles.ala.org.au/opus/foa/profile/Melastoma%20affine Open source ↗
Fruit type and description
Rounded semi-succulent fruit about 8 mm; dark pulp associated with tongue staining.
Flora of Australia citation
Trevor Whiffin, P.G. Kodela. Melastoma affine. Flora of Australia, Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water, Canberra. https://profiles.ala.org.au/opus/foa/profile/Melastoma%20affine (accessed 2026-10-14). Copyright Commonwealth of Australia; CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). HTML formatting removed; species-level context added where noted. Open source ↗ Open source 2 ↗
Flora of Australia retrieved
14/10/2026