Deva D. Tirvengadum

Catunaregam spinosa, the mountain pomegranate, is a flowering plant in the family Rubiaceae, found in South Asia and other Asian countries. Almost all parts of the plant are used as a traditional medicine in Ayurveda and fruits have been reported to be used in medicine as well as in food. Various flavonoids, alkaloids, tannins, lignans, terpenoids, and volatile oils have been reported from this plant. Several studies have reported the modern pharmaceutical activities of C. spinosa such as piscicidal, molluscicidal, antioxidant, anti-inflammatory, antidiabetic, and antihyperlipidemic

Ramosmania rodriguesii, commonly known as café marron, is a tree native to the Mauritian island of Rodrigues in the Indian Ocean. The plant has an average size of about 5 to 6 feet (1.5 to 1.8 m) and features white five-petal star-shaped flowers. Its French common name café marron translates to "brown coffee."

Tarennoidea is a genus of flowering plants belonging to the family Rubiaceae. Its native range is Tropical and Subtropical Asia to Northern Australia. Species: Tarennoidea axillaris (Ridl.) Tirveng. & Sastre Tarennoidea wallichii (Hook.f.) Tirveng. & Sastre

Ramosmania is a genus of two species of small trees in the family Rubiaceae; one is extinct. Both species are endemic to the island of Rodrigues, Mauritius.

Fosbergia is a genus of flowering plants in the family Rubiaceae. The genus is found in southern China, Thailand, and Vietnam.

Ceriscoides is a genus of flowering plants in the family Rubiaceae. The genus is found from the Hainan province to tropical Asia.

Rubovietnamia is a genus of plants in the family Rubiaceae, native to Vietnam, southern China and the Philippines. As of August 2023, three species are recognised: Rubovietnamia coronula Alejandro & Meve – Philippines Rubovietnamia nonggangensis F.J.Mou & D.X.Zhang – China Rubovietnamia sericantha (W.C.Chen) Y.F.Deng, Y.H.Tong, W.B.Xu & N.H.Xia – China, Vietnam

Pitardella is a genus of flowering plants belonging to the family Rubiaceae. It is native to Himalaya, Cambodia, Nepal, Thailand in Indo-China. The genus name of Pitardella is in honour of Charles-Joseph Marie Pitard (1873–1927), an English painter and illustrator. It was first described and published in Biogeographica (The Hague) Vol.79 on page 32 in 2003.

Kailarsenia is a genus of flowering plants in the tribe Gardenieae of the family Rubiaceae. Its native range is Indo-China to West Malesia. Kailarsenia belongs to the "Gardenia" clade, together with Aoranthe pro parte, Ceriscoides, Coddia, Gardenia, and Genipa. The genus name Kailarsenia is a taxonomic patronym honoring Kai Larsen, professor of botany at Århus University, Denmark. The closely related genus Larsenaikia has been named as a taxonomic anagram derived from Kailarsenia.

Aidia racemosa is a tree in the Rubiaceae family, native to areas from Thailand east to the Pacific islands and south to Australia.

Vidalasia is a genus of flowering plants in the family Rubiaceae. The genus is found in Malaysia, Thailand, Vietnam, and the Philippines.

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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.

Larsenaikia jardinei is a shrub or small tree in the coffee family Rubiaceae, endemic to Central Eastern Queensland in Australia.

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Ceriscoides turgida (syn. Gardenia turgida), the mountain gardenia, is a species of flowering plant in the family Rubiaceae, native to the Indian Subcontinent and mainland Southeast Asia. A tree reaching 8 m (26 ft), its unripe fruit can be boiled and eaten as a famine food, but its ripe fruit are poisonous.

Benkara malabarica is a shrub found in India and Sri Lanka. Simple or branched thorns are seen on the stem. The leaves are simple, opposite, and decussate. It has creamy white flowers, and the fruit is a berry containing multiple seeds.

Aidia gardneri is a species of flowering plant in the family Rubiaceae. It occurs in Sri Lanka and Tamil Nadu (southern India).

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Pseudaidia is a genus of flowering plants belonging to the family Rubiaceae. Its native range is India, Sri Lanka. Species: Pseudaidia speciosa (Bedd.) Tirveng.

Larsenaikia is a genus of flowering plants in the tribe Gardenieae of the family Rubiaceae. Its native range is Eastern and Northern Australia. It contains three species — L. jardinei, L. ochreata, and L. suffruticosa — formerly classified in Gardenia, and possibly belonging to Kailarsenia. Larsenaikia is a taxonomic anagram derived from the name of the confamilial genus Kailarsenia. The latter name is a taxonomic patronym honoring Kai Larsen, professor of botany at Århus University, Denmark.

Glionnetia is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Glionnetia sericea, which is endemic to Mahé and Silhouette Island in the Seychelles. The species thrives mainly on high ridges in the mountains and it does not seem to grow well at lower altitudes. Glionnetia sericea is a small flower with paniculate terminal inflorescences and it has capsules that are dispersed by wind.

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Dioecrescis is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Dioecrescis erythroclada, which is native to India, Bangladesh, Cambodia, Laos, Myanmar, Thailand, and Vietnam.

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Alleizettella leucocarpa is a species of flowering plant, a member of the family Rubiaceae.

Aidiopsis is a monotypic genus of flowering plants in the family Rubiaceae. The type species was Aidiopsis forbesii but this is now considered a synonym of Aidiopsis orophila. It is native to Thailand, Malaysia, Sumatra, Java and the Andaman Islands.

Tamilnadia is a genus of flowering plants belonging to the family Rubiaceae. Its native range is Indian subcontinent to Indo-China. Species: Tamilnadia uliginosa (Retz.) Tirveng. & Sastre

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Paragenipa lancifolia is a species of flowering plant belonging to the family Rubiaceae. It is a shrub or tree endemic to the Seychelles. It is the sole species in genus Paragenipa.