Alyxia grandis
| Alyxia grandis | |
|---|---|
| |
| Herbarium specimen with flowers | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Alyxia |
| Species: | A. grandis
|
| Binomial name | |
| Alyxia grandis | |
Alyxia grandis is a species of plant in the oleander and frangipani family Apocynaceae. It is native to the Wet Tropics bioregion of Queensland, Australia.
Description
Alyxia grandis is a twining climber with stems up to 15 m (49 ft) long and 5 cm (2.0 in) thick. The stems are marked by large lenticels, and all parts of the plant exude white sap when damaged. The thin but stiff leaves are arranged in whorls of two or three, green above and paler below, and measure up to 11 cm (4.3 in) long and 4 cm (1.6 in) wide. They have about 40 lateral veins either side of the midrib, the leaf edges are smooth and curl downwards slightly.[4][5]
The cream-yellow flowers are born on cymes about 20 mm (0.8 in) long, and are about 4 mm (0.16 in) long and wide. The fruit is yellow when ripe, cylindrical, and measures up to 20 mm (0.8 in) long and 13 mm (0.5 in) wide.[4][5]
Taxonomy
It was first described by Australian botanist Paul Irwin Forster in 1992.[2][4]
Distribution and habitat
This species grows as a tree-top vine in rainforest, at altitudes from sea level to about 1,300 m (4,300 ft), but is more common at altitude.[5] It occurs from the area near Cooktown to about Girringun National Park.[6]
Conservation
This species is listed as least concern under the Queensland Government's Nature Conservation Act.[1] As of 21 October 2025, it has not been assessed by the International Union for Conservation of Nature (IUCN).
References
- ^ a b "Alyxia grandis". Wildnet. Queensland Government. 2025. Retrieved 21 October 2025.
- ^ a b "Alyxia grandis P.I.Forst". Australian Plant Name Index (APNI). Centre for Australian National Biodiversity Research, Australian Government. Retrieved 21 October 2025.
- ^ "Alyxia grandis P.I.Forst". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2025. Retrieved 21 October 2025.
- ^ a b c Forster, PI (1992). "A taxonomic revision of Alyxia (Apocynaceae) in Australia". Australian Systematic Botany. 5 (5): 547. Bibcode:1992AuSyB...5..547F. doi:10.1071/SB9920547.
- ^ a b c F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Alyxia grandis". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 21 October 2025.
- ^ "Search: species: Alyxia grandis | Occurrence records". Australasian Virtual Herbarium. Australian Government. Retrieved 21 October 2025.
External links
- Map of herbarium collections of this species at the Australasian Virtual Herbarium
- Observations of this species on iNaturalist
- Images of this species on Flickriver.com