Plagianthus Regius Subsp. Regius

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Plagianthus regius subsp. regius COMMON NAME Manatu, ribbonwood, lowland ribbonwood SYNONYMS Philippodendrum regium Poiteau, Plagianthus betulinus A.Cunn., Plagianthus betulinus A.Cunn. var. betulinus, Plagianthus urticinus A.Cunn. FAMILY Malvaceae AUTHORITY Plagianthus regius (Poit.) Hochr. subsp. regius FLORA CATEGORY Vascular – Native ENDEMIC TAXON Yes ENDEMIC GENUS Plagianthus regius. Photographer: John Barkla Yes ENDEMIC FAMILY No STRUCTURAL CLASS Trees & Shrubs - Dicotyledons NVS CODE PLARSR CHROMOSOME NUMBER 2n = 42 CURRENT CONSERVATION STATUS 2012 | Not Threatened PREVIOUS CONSERVATION STATUSES 2009 | Not Threatened 2004 | Not Threatened BRIEF DESCRIPTION Tall tree with soft jagged pointed leaves and long sprays of tiny yellowish Rimutaka Rail Trail. Dec 2006. Photographer: flowers and small green fruit that fall as a unit. Wood soft. Leaves Jeremy Rolfe 3-7.5cm long, much wider at base. Juveniles with tangled twigs bearing shorter rounded leaves with blunt bases. DISTRIBUTION Endemic. New Zealand: North, South and Stewart Islands HABITAT Coastal to lower montane. Often a prominent tree in lowland alluvial forest. SIMILAR TAXA Plagainthus regius subsp. chathamicus is very similar. It is endemic to the Chatham Islands and differs only from subsp. regius by the complete lack of the filiramulate, divaricating juvenile growth habit typical of subsp. regius. Both subspecies are now present in New Zealand proper, and subsp. chathamicus is now often sold from garden centres as P. regius. So look for the divaricating growth habit if you want to ensure you have the appropriate plant for your area. FLOWERING September - November FLOWER COLOURS Green PROPAGATION TECHNIQUE Easily grown from fresh seed. However, seed is often difficult to obtain because it is usually damaged by insects. A very fast growing tree which is an excellent specimen tree for a large garden or park. Does well in most situations but prefers a fertile, moist but free draining soil. ETYMOLOGY plagianthus: Oblique or lop-sided flower (petals uneven at the base) regius: Royal REFERENCES AND FURTHER READING Wilcox, M.D. 2002. Lowland ribbonwood Plagianthus regius at Clevedon. Auckland Botanical Society Journal, 57: 144-146 MORE INFORMATION https://www.nzpcn.org.nz/flora/species/plagianthus-regius-subsp-regius/.

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