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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Solanales

Familia: Convolvulaceae
Tribus: Merremieae
Genus: Merremia
Species: M. aniseiifolia – M. caloxantha – M. calycina – M. calyculata – M. candei – M. clemensiana – M. cordata – M. crassinervia – M. dichotoma – M. discoidesperma – M. ellenbeckii – M. emarginata – M. gallabatensis – M. gemella – M. gorinii – M. gracilis – M. grandidentata – M. gregorii – M. hainanensis – M. hederacea – M. hemmingiana – M. hirta – M. hornbyi – M. incisa – M. malvifolia – M. martini – M. obtusa – M. palmata – M. pavonii – M. platyphylla – M. poranoides – M. porrecta – M. pterygocaulos – M. rajasthanensis – M. retusa – M. setisepala – M. sibirica – M. spongiosa – M. steenisii – M. subsessilis – M. thorelii – M. truncata – M. verdcourtiana – M. verecunda – M. verruculosa – M. warderensis – M. wurdackii – M. xanthophylla – M. yunnanensis

Merremia Dennst. ex Endl. (1841), nom. cons.

Type species: M. hederacea (Burm.f.) Hallier f.


Merremia Dennst., Schlüssel Hortus Malab. 12, 23, 34. 1818, nom. inval.
Skinneria Choisy, Convolv. Orient. 105. 1834; Mém. Soc. Phys. Genève 6: 487. 1834, non Skinnera Forst. (1776).
Type species: S. caespitosa (Roxb.) Choisy
Spiranthera Bojer, Hortus Maurit. 226. 1837.
Type species: non design.

Note: This is a view of Merremia s.s. sensu Simões & Staples (2017) with traditional Sectiones dismantled across a number of segregate genera and therefore are no longer tenable.
Primary references

Endlicher, S.L. 1841. Genera plantarum secundum ordines naturales disposita 1403.

Additional references

Petrongari, F.S., Simões, A.R. & Simão-Bianchini, R. 2018. New combinations and lectotypifications in Distimake Raf.(Convolvulaceae). Phytotaxa 340(3): 297–300. DOI: 10.11646/phytotaxa.340.3.12 Paywall Reference page.
Simões, A.R., Culham, A. & Carine, M.A. 2015. Resolving the unresolved tribe: a molecular phylogenetic framework for the Merremieae (Convolvulaceae). Botanical Journal of the Linnean Society 179(3): 374–387. DOI: 10.1111/boj.12339 Open access Reference page.
Simões, A.R. & Staples, G.W. 2017. Dissolution of Convolvulaceae tribe Merremieae and a new classification of the constituent genera. Botanical Journal of the Linnean Society 183(4): 561-586. DOI: 10.1093/botlinnean/box007 Open access Reference page.


Govaerts, R. et al. 2019. Merremia in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 November 18. Reference page.
Hassler, M. 2019. Merremia. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2019 November 18. Reference page.
International Plant Names Index. 2019. Merremia. Published online. Accessed: November 18 2019.
Tropicos.org 2019. Merremia. Missouri Botanical Garden. Published online. Accessed: 18 November 2019.

Vernacular names
English: Woodrose

Merremia is a genus of flowering plants in the morning glory family, Convolvulaceae. Members of the genus are commonly known as woodroses.[3]


The following species are recognised in the genus Merremia:[4]

M. aniseiifolia Ooststr. – hairy woodrose
M. caloxantha (Diels) Staples & R.C.Fang
M. calycina (Meisn.) Hallier f.
M. calyculata Ooststr.
M. candei (A.Terracc.) Sebsebe
M. clemensiana Ooststr. – roadside woodrose
M. cordata C.Y.Wu & R.C.Fang
M. crassinervia Ooststr.
M. dichotoma Ooststr.
M. discoidesperma (Donn.Sm.) O'Donell
M. ellenbeckii Pilg.
M. emarginata (Burm.f.) Hallier f.
M. gallabatensis Hallier f.
M. gemella (Burm.f.) Hallier f.
M. gorinii Chiov.
M. gracilis E.J.F.Campb. & Argent
M. grandidentata (C.H.Thomps.) Staples & Simões
M. gregorii Rendle
M. hainanensis H.S.Kiu
M. hederacea (Burm.f.) Hallier f. (type) – ivy woodrose
M. hemmingiana Verdc.
M. hirta (L.) Merr.
M. hornbyi Verdc.
M. incisa (R.Br.) Hallier f.
M. malvifolia Rendle
M. martini (H.Lév.) Staples & Simões
M. obtusa (Verdc.) Thulin
M. palmata Hallier f.
M. pavonii (Hallier f.) D.F.Austin & Staples
M. platyphylla (Fernald) O'Donell
M. poranoides (C.B.Clarke) Hallier f.
M. porrecta Pilg.
M. pterygocaulos (Choisy) Hallier f.
M. rajasthanensis Bhandari
M. retusa (Baker) Manitz – rock rosemary
M. setisepala Verdc.
M. sibirica (L.) Hallier f.
M. spongiosa Rendle
M. steenisii Ooststr.
M. subsessilis (Courchet & Gagnep.) T.N.Nguyen
M. thorelii (Gagnep.) Staples
M. truncata Verdc.
M. verdcourtiana Lejoly & Lisowski
M. verecunda Rendle
M. verruculosa S.Y.Liu
M. warderensis Sebsebe.
M. wurdackii D.F.Austin & Staples
M. xanthophylla Hallier f.
M. yunnanensis (Courchet & Gagnep.) R.C.Fang

Formerly placed here

Operculina turpethum (L.) Silva Manso (as M. turpethum (L.) Rendle)
Xenostegia medium (L.) D.F.Austin & Staples (as M. medium (L.) Hallier f.)
Xenostegia tridentata (L.) D.F.Austin & Staples (as M. tridentata (L.) Hallier f.)[5]


In the Indigenous system of Medicine, Ipomoea reniformis chois is also known as Merremia emarginata (Burm.f.) Hallier f. has been claimed to be useful for cough, headache, neuralgia, rheumatism, diuretic, inflammation, fever due to enlargement of liver and also in kidney diseases. The tribal people use this plant for deobstruent, diuretic, rheumatism, neuralgia, cancerous wounds, migraine, purgative, snake bites, ulcer, abscesses and glandular swelling.

The genus Merremia was originally described and published in Genera Plantarum 18: 1403. 1841. "Name - !Merremia Dennst. ex Endl". Tropicos. Saint Louis, Missouri: Missouri Botanical Garden (MOBOT). Retrieved January 7, 2013. "Type Specimens: T: Merremia hederacea (Burm.f.) Hallier f."
GRIN (October 5, 2007). "Merremia information from NPGS/GRIN". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Retrieved January 7, 2013. "Comment: conserved (nom. cons.) against the heterotypic synonyms (Vienna ICBN Art. 14.4 & App. III) Operculina Silva Manso, nom. rej. & the heterotypic synonym Camonea Raf., nom. rej."
"Merremia". Integrated Taxonomic Information System. Retrieved 2011-04-12.
"Merremia Dennst. ex Endl. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2020-04-16.
GRIN. "Species in GRIN for genus Merremia". Taxonomy for Plants. USDA, ARS, National Genetic Resources Program. Retrieved January 7, 2013.

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