Rosa micrantha

Rosa micrantha
In bloom
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Rosa
Species:	R. micrantha
Binomial name
Rosa micrantha Borrer ex Sm.
Synonyms [1]
List Rosa arcadiensisHalácsy Rosa bordzilowskiiChrshan. Rosa candidaDavidov Rosa canescensBorrer ex Sm. Rosa chomutoviensisChrshan. & Lasebna Rosa diminutaBoreau ex Déségl. Rosa eglanteria var. nemoralis(Léman) P.V.Heath Rosa ferociformis(Prodan) Prodan Rosa hircianaHeinr.Braun Rosa histrixLéman Rosa hungaricaA.Kern. Rosa lactifloraDéségl. Rosa lantoscanaBurnat & Gremli Rosa lemaniiBoreau Rosa leucadiaHeinr.Braun Rosa libertianaTratt. Rosa lusseriLagger & Puget Rosa meridionalisBurnat & Gremli Rosa mukatscheviensisChrshan. Rosa nemoralisLéman Rosa oblongifoliaDum.Cours. Rosa opertaPuget ex Crép. Rosa permixtaDéségl. Rosa perparvaBorbás Rosa psammophilaChrshan. Rosa rubiginosa var. nemoralis(Léman) Thory Rosa septicolaDéségl. Rosa septicoloidesCrép. Rosa sphaerophoraRipart ex Nyman Rosa subspoliataDéségl. & Ozanon Rosa trinacriaeBurnat & Gremli

Rosa micrantha, the small-flowered sweet briar, is a species of flowering plant in the family Rosaceae. ^[2] It is native to most of Europe, the Atlas Mountains of Africa, the Caucasus region, Turkey, Lebanon, and Syria, and it has been introduced to eastern North America, Argentina, and New Zealand. ^[1] A shrub reaching 3.5 m (11 ft), it is not readily available in commerce. ^[3]

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  Close-up of flower
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  Flowers can be pink
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  Flowers and foliage
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  Hips
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  Hips remain after leaves abscise
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  Botanical illustration

Genetics

Unlike some other species in Rosa sect. Caninae which are pentaploid with an unusual meiosis referred to as permanent odd polyploidy, R. micrantha has been found to be hexaploid with fully sexual reproduction. ^[4]

References

1. "Rosa micrantha Borrer ex Sm". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 31 August 2022.
2. "Rosa micrantha small-flowered sweet briar". The Royal Horticultural Society. 2022. Retrieved 31 August 2022.
3. "Trees and shrubs: native to Britain". The Royal Horticultural Society. 2022. Retrieved 31 August 2022.
4. Christiane Mritz and Volker Wissemann (2011), Microsatellite Analyses of Artificial and Spontaneous Dogrose Hybrids Reveal the Hybridogenic Origin of Rosa micrantha by the Contribution of Unreduced Gametes, doi:10.1093/jhered/esq124