''Leionema'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of more than 20 species of mostly small

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

s in the family

Rutaceae The Rutaceae is a family, commonly known as the rueRUTACEAE
in BoDD – Botanical Derm ...

, most of which are

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to eastern

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

. Plants within this genus have scented foliage and clustered, star-shaped flowers which range in colour from cream to bright yellow. Prior to 1998, all species within this genus were included in the genus ''

Phebalium ''Phebalium'' is a genus of thirty species of shrubs or small trees in the family Rutaceae and is endemic to Australia. The leaves are arranged alternately, simple and often warty, the flowers arranged singly or in umbels on the ends of bran ...

''.

Species list

The following is a list of species and subspecies accepted by the

Australian Plant Census The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Syst ...

as at April 2020, and including the New Zealand endemic ''Leionema nudum'': *'' Leionema ambiens'' (F.Muell.) Paul G.Wilson — forest phebalium *'' Leionema bilobum'' (Lindl.) Paul G.Wilson — notched phebalium ** ''Leionema bilobum'' (Lindl.) Paul G.Wilson subsp. ''bilobum'' ** ''Leionema bilobum'' subsp. ''serrulatum'' (F.Muell.) Duretto & K.L.Durham ** ''Leionema bilobum'' subsp. ''thackerayense'' Duretto & K.L.Durham ** ''Leionema bilobum'' subsp. ''truncatum'' (Hook.f.) Duretto & K.L.Durham *'' Leionema carruthersii'' (F.Muell.) Paul G.Wilson *'' Leionema ceratogynum'' N.G.Walsh *'' Leionema coxii'' (F.Muell.) Paul G.Wilson *'' Leionema dentatum'' (Sm.) Paul G.Wilson — toothed phebalium *'' Leionema diosmeum'' (A.Juss.) Paul G. Wilson *''

Leionema elatius ''Leionema elatius'', commonly known as tall phebalium, is a shrub species that is endemism, endemic to New South Wales and Queensland in Australia. It has glossy green, variably-shaped leaves and clusters of white-lemon flowers in spring. De ...

'' (F.Muell.) Paul G.Wilson — tall phebalium ** ''Leionema elatius'' subsp. ''beckleri'' (F.Muell.) Paul G.Wilson ** ''Leionema elatius'' (F.Muell.) Paul G.Wilson subsp. ''elatius'' *'' Leionema ellipticum'' Paul G.Wilson *'' Leionema equestre'' (D.A.Cooke) Paul G.Wilson *''

Leionema gracile ''Leionema gracile'', commonly known as Mt Greville phebalium, is a shrub species that is endemic to Queensland, Australia. It is a small shrub with spreading leaves, white petals and flowers from autumn to spring. Description ''Leionema grac ...

'' (C.T. White) Paul G.Wilson *'' Leionema hillebrandii'' (J.H. Willis) Paul G.Wilson *'' Leionema lachnaeoides'' (A.Cunn.) Paul G.Wilson *''

Leionema lamprophyllum ''Leionema lamprophyllum'', commonly known as shiny phebalium, is a shrub species that is endemic to Australia. It grows up to 2 metres in height, with leaves that are 3–10 mm long and 2–4 mm wide. White flowers are produced in sp ...

'' (F.Muell.) Paul G.Wilson — shiny phebalium ** ''Leionema lamprophyllum'' subsp. ''fractum'' S.A.J.Bell ** ''Leionema lamprophyllum'' (F.Muell.) Paul G.Wilson subsp. ''lamprophyllum'' ** ''Leionema lamprophyllum'' subsp. ''obovatum'' F.M.Anderson ** ''Leionema lamprophyllum'' subsp. ''orbiculare'' F.M.Anderson *''

Leionema microphyllum ''Leionema microphyllum'', commonly known as limestone phebalium, is a small shrub with terminal clusters of white-pink flowers in spring. It is a rare plant in Victoria and South Australia. Description ''Leionema microphyllum'' is a small shrub ...

'' (F.Muell.) Paul G.Wilson *'' Leionema montanum'' (Hook.) Paul G.Wilson *''

Leionema nudum ''Leionema'' is a genus of more than 20 species of mostly small shrubs in the family Rutaceae, most of which are endemic species, endemic to eastern Australia. Plants within this genus have scented foliage and clustered, star-shaped flowers which ...

'' (Hook.) Paul G.Wilson — Mairehau, endemic to the North Island of New Zealand *'' Leionema obtusifolium'' (Paul G.Wilson) Paul G.Wilson *'' Leionema oldfieldii'' (F.Muell.) Paul G.Wilson *''

Leionema phylicifolium ''Leionema phylicifolium'', commonly known as alpine phebalium, is a shrub that is endemic to south-eastern Australia. It is a small shrub with green, smooth, leathery leaves and pale yellow flowers in spring. Description ''Leionema phylicifoli ...

'' (F.Muell.) Paul G.Wilson — mountain phebalium *'' Leionema praetermissum'' P.R.Alvarez & Duretto *'' Leionema ralstonii'' (F.Muell.) Paul G.Wilson *'' Leionema rotundifolium'' (A.Cunn. ex Endl.) Paul G.Wilson — round-leaved phebalium *'' Leionema scopulinum'' B.M.Horton & Crayn *'' Leionema sympetalum'' (Paul G.Wilson) Paul G.Wilson — Rylstone Bell *'' Leionema viridiflorum'' (Paul G.Wilson) Paul G.Wilson — green phebalium *'' Leionema westonii'' L.M.Copel. & I.Telford

References

*
Australian Plant Name Index (APNI): ''Leionema'' (species)
* ttp://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&search=yes&namesearch=Leionema&dist= PlantNET — New South Wales Flora Online ''Leionema'' (list of species)* Taxa named by Ferdinand von Mueller Zanthoxyloideae genera {{Rutaceae-stub