Malva Arborea

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Malva arborea COMMON NAME Tree mallow SYNONYMS Lavatera arborea; Malva dendromorpha M.F.Ray (1998) FAMILY Malvaceae AUTHORITY Malva arborea (L.) Webb & Berthel. FLORA CATEGORY Vascular – Exotic STRUCTURAL CLASS Herbs - Dicotyledons other than Composites NVS CODE MALARB Malva dendromorpha. Photographer: John Barkla HABITAT Terrestrial. Waste places, cultivated land, Coastal sites. FEATURES Stout biennial herb, usually with a single stem up to 2 m tall. Stems hairy when young, becoming hairless and woody at base when older. Leaves velvety to the touch, with 5-7 lobes, up to 20 cm across. Lilac to purple flowers arranged in clusters at end and along upper parts of the stem. 6-8 seeds per fruit. SIMILAR TAXA There are several other large Malva species that have naturalised in New Zealand. FLOWERING August, September, October, November, January, February, March, April, May. FLOWER COLOURS Violet/Purple LIFE CYCLE Spreads by seed, 6-8 seeds produced by each fruit. Dispersed by soil Pauatahanui Inlet. Jun 2006. Photographer: movement. Jeremy Rolfe YEAR NATURALISED 1870 ORIGIN W. and S. Europe, N. Africa REASON FOR INTRODUCTION Ornamental TOLERANCES Prefers high light, thrives in disturbed sites and can tolerate salt. ETYMOLOGY arborea: From the Latin arbor ‘tree’, meaning tree-like TAXONOMIC NOTES Long known as Lavatera arborea, in 1998 this species was transferred to Malva by Ray (1998). REFERENCES AND FURTHER READING Ray, M.F. 1998: New combinations in Malva (Malvaceae: Malveae). Novon 8: 288-295. Hill, S.R. 2009: Notes on California Malvaceae including nomenclatural changes and additions to the flora. Madroño 5. MORE INFORMATION https://www.nzpcn.org.nz/flora/species/malva-arborea/.

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