Guioa is a genus of about 78 rainforest tree species known to science, which constitute part of the plant family Sapindaceae. They have a wide distribution, ranging from throughout Malesia, in Burma, Cambodia, Vietnam, Thailand, Malay Peninsula, Borneo, Sumatra, Philippines, Java, Flores, Timor, Sulawesi, Moluccas, New Guinea, further southwards through the east coast of Queensland and New South Wales, Australia and further eastwards to the Pacific Islands, including Tonga, New Caledonia, Fiji and Samoa.
Englerodendron obanense is a small tree in the family Fabaceae. It is endemic to Nigeria. It is threatened by habitat loss.
Sindora tonkinensis is a species of legume in the family Fabaceae. This up to 15 m (49 ft) tall tree is native to Cambodia and Vietnam, and it is cultivated in Guangdong in southern China.
Nouelia insignis is a species of flowering plant in the family Asteraceae, and the only species in the genus Nouelia. It is found only in Yunnan and Sichuan provinces, China, where it is threatened by habitat loss.
Bursera tonkinensis is a species of plant in the Burseraceae family. It is endemic to Vietnam and listed as "vulnerable."
Ficus bojeri is a species of plant in the family Moraceae. It is endemic to Seychelles. It is a fairly small ficus, or fig, tree with small branches and oval-shaped leaves. It is greyish-brown in color. The fruit hangs from the trunk of the tree on centimeter long twigs.
Ficus panurensis is a species of plant in the family Moraceae. It is found in Brazil, Guyana, Suriname, and Venezuela.
Knema tonkinensis is a species of plant in the family Myristicaceae. It is found in Laos and Vietnam.
Miconia calophylla is a species of plant in the family Melastomataceae. It is endemic to Peru.
Phialanthus jamaicensis is a species of plant in the family Rubiaceae. It is endemic to Jamaica. It is threatened by habitat loss.
Phialanthus revolutus is a species of plant in the family Rubiaceae. It is endemic to Jamaica.
Melicope remyi, synonym Platydesma remyi, the Hawai'i pilo kea, is a species of plant in the family Rutaceae. It is endemic to the island of Hawaii. It is threatened by habitat loss. It is on the IUCN Red List of Endangered species.
Rondeletia amplexicaulis is a species of plant in the family Rubiaceae. It is endemic to Jamaica.
Rondeletia harrisii is a species of plant in the family Rubiaceae. It is endemic to Jamaica.
Rondeletia pallida is a species of plant in the family Rubiaceae. It is endemic to Jamaica. It is threatened by habitat loss.
Breynia retusa is a species of plant in the family Phyllanthaceae.
Deutzianthus tonkinensis is a species of small tree up to 12 metres (39 ft) tall in the family Euphorbiaceae. It is found in southern China and northern Vietnam. The species is under second-class national protection in China.
