''Hydnophytum'' is a genus of

epiphytic An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phoroph ...

myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton'' "plant", after their appearance with their swollen succulent stems. The species grow in tree branches and on trunks. Like the related genus ''

Myrmecodia ''Myrmecodia'' is a genus of epiphytic myrmecophytes (mər′mek•ə‚fīt; literally "ant-plant"), native to Southeast Asia, but also present in Indochina, Malaysia, the Southwest Pacific, the Philippines, Fiji, and extending south to Queensl ...

'', they are known as antplants or ant-house plants. The type species is ''

Hydnophytum formicarum ''Hydnophytum formicarum'', commonly called a "Baboon's head" or "Ant plant", is an epiphyte native to Southeast Asia and is considered critically endangered in Singapore. It is a myrmecophyte as ants live in its tuber, also known as a caudex, ...

'' from the Philippines. The genus contains 55 species, of which 44 are found in and around the island of New Guinea. Many are poorly known, with 11 known only from the holotype. They form a symbiotic relationship with ants. Ant plants provide habitats for ant colonies high up into the forest canopy, protecting them from the elements and also predators because of the spines. Hollow, smooth-walled tunnels form within the

caudex A caudex (plural: caudices) of a plant is a stem, but the term is also used to mean a rootstock and particularly a basal stem structure from which new growth arises.pages 456 and 695 In the strict sense of the term, meaning a stem, "caudex" is m ...

with external entrance holes, providing an above-ground home for ant colonies. Ants likewise provide defense for the plant and prevent tissue damage, swarming to defend their home if disturbed. Ant colonies also provide nutrients to the plants by leaving wastes within the tunnels inside the caudex. Special glands lining the tunnels then absorb nutriment for the plant. This symbiosis allows the plants to effectively gather nutrients (via the ants) from a much larger area than the roots ever could cover. These plants can be grown in cultivation without the ant species being present. Two species seen occasionally in cultivation are '' Hydnophytum ferrugineum'' from the McIlwraith Ranges east of Coen on the Cape York Peninsula, and '' H. moseleyanum'', also from Cape York. The former has a spiny swollen trunk while the latter has a smooth one. ''Hydnophytum'' is one of five ant-plant genera in the family Rubiaceae, the others being '' Anthorrhiza'', ''

'', '' Myrmephytum'', and '' Squamellaria''.

Species

The following list, which includes more than 90 species, is based on

The Plant List The Plant List was a list of botanical names of species of plants created by the Royal Botanic Gardens, Kew and the Missouri Botanical Garden and launched in 2010. It was intended to be a comprehensive record of all known names of plant species ...

''Hydnophytum''

. and likely includes many synonyms. Matthew Jebb and Camilla Huxley recognise only 55 species in the genus. *'' Hydnophytum agatifolium'' Valeton *'' Hydnophytum albense'' Valeton *'' Hydnophytum albertisii''

Becc. Odoardo Beccari (16 November 1843 – 25 October 1920) was an Italian botanist famous for his discoveries in Indonesia, particularly New Guinea, and Australia. He has been called the greatest botanist to ever study Malesia. His author abbrevi ...

*'' Hydnophytum alboviride'' Merr. & L.M.Perry *'' Hydnophytum amboinense'' Becc. *''

Hydnophytum amplifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' S.Moore *''

Hydnophytum andamanense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum angustifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Merr. *''

Hydnophytum archboldianum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum borneanum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum brachycladum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. *''

Hydnophytum bracteatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *''

Hydnophytum brassii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' S.Moore *'' Hydnophytum buxifolium'' Merr. & L.M.Perry *''

Hydnophytum caminiferum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Wistuba, U.Zimm., Gronem. & Marwinski Wistuba, A., U. Zimmermann, D. Marwinski & T. Gronemeyer (2014). ''Hydnophytum caminiferum'', eine einzigartige neue ''Hydnophytum''-Art von der Vogelkop-Halbinsel in West Papua (Indonesien). ''

Das Taublatt ''Das Taublatt'' is a triannual German-language periodical based in Bochum and the official publication of Gesellschaft für fleischfressende Pflanzen im deutschsprachigen Raum, a carnivorous plant society based in Germany.Rice, B. 2010Carnivor ...

'' 78: 45–50. *''

Hydnophytum camporum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' S.Moore *''

Hydnophytum capitatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *'' Hydnophytum confertifolium'' Merr. & L.M.Perry *''

Hydnophytum contortum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum cordifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *'' Hydnophytum coriaceum'' Becc. *''

Hydnophytum costatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Drake *''

Hydnophytum crassicaule ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' P.Royen *'' Hydnophytum crassifolium'' Becc. *''

Hydnophytum cuneatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *''

Hydnophytum decipiens ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Merr. & L.M.Perry *'' Hydnophytum dipteropodum'' (K.Schum. & Lauterb.) Valeton *''

Hydnophytum dolichophyllum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum ellipticum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Merr. & L.M.Perry *'' Hydnophytum ferrugineum'' P.I.Forst. *''

Hydnophytum forbesii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Hook.f. *''

'' Jack *'' Hydnophytum grandiflorum'' Becc. *''

Hydnophytum grandifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum guppyanum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum hahlii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Rech. *''

Hydnophytum hellwigii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Warb. *''

Hydnophytum heterophyllum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Merr. & L.M.Perry *''

Hydnophytum inerme ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' (Gaudich.) Bremek. *''

Hydnophytum intermedium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Elmer *''

Hydnophytum kajewskii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum kejense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *'' Hydnophytum kelelense'' Valeton *'' Hydnophytum kochii'' Valeton *''

Hydnophytum lanceolatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Miq. *'' Hydnophytum laurifolium'' Warb. *''

Hydnophytum lauterbachii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *''

Hydnophytum ledermannii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum leytense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. *''

Hydnophytum linearifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum longiflorum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' A.Gray *''

Hydnophytum longipes ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Merr. & L.M.Perry *''

Hydnophytum longistylum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum loranthifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' (Benth.) Becc. *''

Hydnophytum lucidulum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum macrophyllum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Warb. *'' Hydnophytum magnifolium'' Merr. & L.M.Perry *''

Hydnophytum membranaceum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Merr. *''

Hydnophytum microphyllum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum mindanaense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Elmer *''

Hydnophytum mindorense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. *''

Hydnophytum montis-kani ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *''

Hydnophytum moseleyanum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Becc. *''

Hydnophytum myrtifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum nigrescens ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum nitidum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Merr. *'' Hydnophytum normale'' Becc. *''

Hydnophytum oblongum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' (Benth.) Becc. *''

Hydnophytum orbiculatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Elmer *''

Hydnophytum ovatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Miq. *''

Hydnophytum papuanum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Becc. *''

Hydnophytum parvifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *''

Hydnophytum petiolatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Becc. *''

Hydnophytum philippinense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum punamense ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Lauterb. *''

Hydnophytum radicans ''Hydnophytum moseleyanum'' is a plant in the coffee and gardenia family Rubiaceae native to the Maluku Islands and New Guinea. It is an epiphyte that inhabits mangrove forest and rainforest, and it forms a symbiotic relationship with certai ...

'' Becc. *''

Hydnophytum ramispinum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum robustum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Rech. *''

Hydnophytum selebicum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum simplex ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum spathulatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Valeton *'' Hydnophytum stenophyllum'' Valeton *'' Hydnophytum stewartii'' Fosberg *'' Hydnophytum subfalcifolium'' Valeton *''

Hydnophytum subnormale ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' K.Schum. *''

Hydnophytum subrotundum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum subsessile ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Valeton *''

Hydnophytum sumatranum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum tetrapterum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc. *''

Hydnophytum tortuosum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Becc. *''

Hydnophytum vaccinifolium ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' P.Royen *''

Hydnophytum virgatum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''ph ...

'' Valeton *''

Hydnophytum vitis-idaea ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Merr. & L.M.Perry *''

Hydnophytum wilkinsonii ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton' ...

'' Horne ''ex'' Baker *''

Hydnophytum zippelianum ''Hydnophytum'' is a genus of epiphytic myrmecophytes (ant plants) native to Southeast Asia, the Pacific region and also extending into Queensland in northern Australia. The name is derived from the Ancient Greek ''hydnon'' "tuber", and ''phyton ...

'' Becc.

Notes

{{Taxonbar, from=Q291522 Rubiaceae genera Myrmecophytes Epiphytes Psychotrieae