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Guioa semiglauca
	Foliage and flowers
Conservation status
	Least Concern (NCA)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Sapindales
Family:	Sapindaceae
Genus:	Guioa
Species:	G. semiglauca
Binomial name
	Guioa semiglauca; (F.Muell.) Radlk.
Synonyms
	Aytera semiglauca F.Muell.; Cupania semiglauca F.Muell. ex Benth.; Nephelium semiglaucum (F.Muell.) F.Muell.;

Guioa semiglauca, known as the guioa or wild quince, is a rainforest tree of eastern Australia It grows from Kioloa (35° S) near Batemans Bay in southern New South Wales to Eungella National Park (20° S) in tropical Queensland. It grows in many different types of rainforest, particularly common in regenerating areas and on sand in littoral rainforest.

Description

Guioa semiglauca grows to around 25 m tall and 43 cm in diameter, but it may flower and fruit when only 6 m tall. The outer bark is smooth and the trunk is fluted. It is similar to coachwood, however it is more fluted and irregular.^[4]^[5]

The veiny leaflets are pinnate and measure up to 10 cm long. The midrib extends beyond the leaf to form a tiny tip. They are green above and whitish (glaucous) below. The yellow/green flowers form around September to November. The fruiting capsule matures from January to May. The seeds are oval covered by a thin layer of fleshy aril. Fruit eaten by a large variety of birds, including the Australian king parrot.^[4]^[5]

Uses

Indigenous Australians used the saponin in the bark as a fish poison.

Gallery

Stand of trees on the Illawarra Escarpment south west of Kiama
Fluted trunk
Underside of leaves
Female flowers
Male flowers
Fruit

References

^ "Species profile—Guioa semiglauca". Queensland Department of Environment and Science. Queensland Government. 2022. Retrieved 20 May 2024.
^ "Guioa semiglauca". Australian Plant Name Index (APNI). Centre for Australian National Biodiversity Research, Australian Government. Retrieved 20 May 2024.
^ ^a ^b "Guioa semiglauca (F.Muell.) Radlk". Plants of the World Online. Royal Botanic Gardens, Kew. 2024. Retrieved 20 May 2024.
^ ^a ^b Harden, G.; Crayn, D.M. (1991). "PlantNET - FloraOnline". PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. Retrieved 20 May 2024.
^ ^a ^b F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Guioa semiglauca". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 20 May 2024.