Idiospermum is a monotypic genus in the family Calycanthaceae. The sole included species is Idiospermum australiense − commonly known as idiotfruit, ribbonwood, or dinosaur tree − which is found only in two small areas of the tropical rainforests of northeastern Queensland, Australia. It is a relic of the ancient forests of Gondwana, surviving in very localised refugia for 120 million years, and displaying features that are almost identical to fossil records from that time. As such it provides an important insight into the very early evolution of flowering plants.
Elaeocarpus grandis, commonly known as the blue quandong, silver quandong or blue fig, is a species of flowering plant in the family Elaeocarpaceae which was first described in 1860. It is a large buttressed tree native to the coastal rainforests of northeastern Australia. The validity of this taxon is disputed, with some authorities accepting it and others presenting it as Elaeocarpus angustifolius.
Elaeocarpus bancroftii, commonly known as Kuranda quandong, Johnstone River almond, ebony heart, grey nut, or nut tree is a large rainforest tree in the family Elaeocarpaceae which is endemic to Queensland. It has coriaceous leaves, attractive white flowers and relatively large fruit containing an edible kernel.
Phaleria clerodendron, commonly known as scented daphne, scented phaleria or rosy apple, is an evergreen tree or tall shrub in the family Thymelaeaceae. It is endemic to the rainforests of north-eastern Queensland, Australia.
Didymocheton pettigrewianus, commonly known as spur mahogany, spurwood, or Cairns satinwood, is a large tree in the family Meliaceae. It is native to the rainforests of Malesia, Papuasia and Queensland. In Queensland it occurs only in a small part of the northeast coast.
Buckinghamia celsissima, commonly known as the ivory curl tree, ivory curl flower or spotted silky oak, is a species of tree in the family Proteaceae. It is endemic to the tropical rainforests of northeastern Queensland, Australia.
Nothorites is a monotypic genus in the macadamia family Proteaceae. The sole species, Nothorites megacarpus, is endemic to the wet tropics rain forests of northeastern Queensland, Australia.
Goniocheton arborescens, commonly known in Australia as Mossman mahogany, is a small tree in the mahogany family Meliaceae. It is native to rainforests of Malesia, Papuasia, Queensland and nearby islands.
Palaquium galactoxylum, commonly known as Cairns pencil cedar, Daintree maple or red silkwood, is a species of plants in the star apple family Sapotaceae which is endemic to rainforests of New Guinea and northern Australia. It can produce spectacularly large buttress roots.
Melicope rubra, commonly known as the little evodia, is a species of small tree in the citrus family Rutaceae, native to New Guinea and northeast Queensland. It was originally described as Euodia rubra in 1900. It has trifoliate leaves and pink bisexual flowers arranged on branches below the leaves.
Gardenia actinocarpa is a rare and endangered plant in the coffee and gardenia family Rubiaceae, native to a very restricted area within the Wet Tropics rainforest of northeastern Queensland.
Harpullia ramiflora, commonly known as the Claudie tulipwood or Cape York tulipwood, is a tree in the Sapindaceae family native to north east Queensland, New Guinea and parts of Malesia.
Alstonia muelleriana is a tree in the dogbane family Apocynaceae which is native to southern Papua New Guinea and northeastern Queensland.
Atractocarpus sessilis, commonly known as brown randia, is an evergreen shrub in the family Rubiaceae. It is native to both Queensland, Australia, and Papua New Guinea (PNG).
Peripentadenia phelpsii is a plant in the family Elaeocarpaceae which is endemic to a very small part of northeastern Queensland, Australia. It is a large evergreen tree with large buttresses, and was first described in 1982.
Harpullia rhyticarpa, commonly known as slender harpullia, is a plant in the family Sapindaceae which is endemic to the rainforests northeastern Queensland, Australia.
Sterculia shillinglawii, commonly known as tulip sterculia or lacewood, is a tree in the cotton and cocoa family Malvaceae, native to Papuasia and northeastern Australia.
Cupaniopsis flagelliformis, commonly known as brown tuckeroo or weeping flower tamarind, is a tree in the lychee and maple family Sapindaceae endemic to eastern Australia. It is a small tree that inhabits drier or seasonal rainforests.
Larsenaikia ochreata, commonly known as Wenlock gardenia, scented Gardenia bush or wild Gardenia, is a plant in the coffee family Rubiaceae endemic to Queensland, Australia.
Rhodamnia sessiliflora, commonly known as iron malletwood, is a small tree in the eucalyptus family Myrtaceae, found only in the Wet Tropics bioregion of Queensland, Australia.
