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Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Iridaceae
Subfamilia: Patersonioideae
Genus: Patersonia
Species: P. argyrea – P. babianoides – P. borneensis – P. drummondii – P. fragilis – P. glabrata – P. graminea – P. inaequalis – P. inflexa – P. juncea – P. lanata – P. limbata – P. lowii – P. macrantha – P. maxwellii – P. neocaledonica – P. novo-guineensis – P. occidentalis – P. philippinensis – P. pygmaea – P. rudis – P. sericea – P. sumatrensis – P. umbrosa

Source(s) of checklist:

Patersonia R.Br., nom. cons.
Type species: Patersonia sericea R.Br.


Genosiris Labill., Nov. Holl. Pl. 1: 13 & t.9. 1805, nom. rej.
Type species: Genosiris fragilis Labill.


Brown, R. (1807) Botanical Magazine 26:: ad t. 1041.

Patersonia is a genus of flowering plants in the family Iridaceae commonly known as native iris or native flag.[2] It was first described as a genus in 1807 by Robert Brown.[3] It is native to Australia, New Guinea, New Caledonia, and insular Southeast Asia.[1][4] The genus name is a tribute to the first Lieutenant Governor of New South Wales in Australia, William Paterson.[5]

They are perennials with basal leaves growing from a woody rhizome that in some species extends above ground to form a short trunk. The leaves are tough and fibrous, often with adaptations for conserving moisture, such as stomata sunk in grooves, a thickened cross-section, marginal hairs, and thickened margins.

The flowers appear from between a pair of bracts on a leafless stem. They have three large outer tepals that are usually blue to violet, and three tiny inner tepals. There are three stamens fused at the base to form a tube around the longer style, which bears a flattened stigma.[6]

Several Patersonia species are grown as garden plants. They can be propagated by seed or by division.


Patersonia argyrea D.A.Cooke - Gairdner Range in Western Australia
Patersonia babianoides Benth. - Western Australia
Patersonia borneensis Stapf - Sabah
Patersonia drummondii F.Muell. ex Benth. - Western Australia
Patersonia fragilis (Labill.) Asch. & Graebn. - swamp iris, a plant of sandy coastal heathlands in south-eastern Australia (southern Queensland to Tasmania); it has narrow, grey-green leaves and pale violet flowers close to the ground
Patersonia glabrata R.Br. - Queensland, New South Wales, Victoria - leafy purple flag, bugulbi (Cadigal), a shrub up to 80 cm high with wiry, tangled stems
Patersonia graminea Benth. - Western Australia
Patersonia inaequalis Benth. - Western Australia
Patersonia inflexa Goldblatt - Papua New Guinea
Patersonia juncea Lindl. - Western Australia
Patersonia lanata R.Br. - Western Australia
Patersonia limbata Endl. - Stirling Range in Western Australia
Patersonia lowii Stapf - Sabah
Patersonia macrantha Benth. - Northern Territory of Australia
Patersonia maxwellii (F.Muell.) F.Muell. ex Benth. - Western Australia
Patersonia neocaledonica Goldblatt & J.C.Manning - New Caledonia
Patersonia novo-guineensis Gibbs - Arfak Mountains in Province of West Papua in Indonesia
Patersonia occidentalis R.Br., which grows up to 75 cm tall and has blue flowers. It is widespread in southern Australia (South Australia, Victoria, Tasmania, Western Australia)
Patersonia philippinensis Goldblatt - Mindoro Island in Philippines
Patersonia pygmaea Lindl. - Western Australia
Patersonia rudis Endl. - Western Australia
Patersonia sericea R.Br. New South Wales
Patersonia spirafolia Keighery - Western Australia
Patersonia sumatrensis Goldblatt - Sumatra
Patersonia umbrosa Endl. , a species from Western Australia that has two colour variants, the typical blue-violet variety, and the yellow-flowered var. xanthina from the karri forests


Kew World Checklist of Selected Plant Families
"Patersonia species" on the Australian national herbarium web site
"Patersonia R.Br". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
Cooke, D. A. (1986). Patersonia. Flora of Australia 46: 13-26. Australian Government Publishing Service, Canberra.
Manning, J. and P. Goldblatt (2008). The Iris Family: Natural History & Classification. Portland, Oregon: Timber Press. pp. 94–95. ISBN 0-88192-897-6.
Goldblatt, P. (2011). Systematics of Patersonia (Iridaceae, Patersonioideae) in the Malesian archipelago. Annals of the Missouri Botanical Garden 98: 514-523.

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