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|Flowers of Mahonia oiwakensis|
Mahonia oiwakensis is a species of plant in the Berberidaceae family. It is native to China (Taiwan, Guizhou, Hong Kong, Sichuan, Taiwan, Xizang (Tibet) and Yunnan). It has been found at elevations up to 3800 m. Recently found naturalized in South Africa.
Mahonia oiwakensis is a shrub or tree up to 7 m tall. Leaves are up to 45 cm long, compound with 12-20 pairs of leaflets plus a larger terminal one, dark green above, yellow-green below. Inflorescence is a fascicled raceme up to 25 cm long. Berries are egg-shaped, dark blue, sometimes almost black, up to 8 mm long. 
5. Jaca, T. P. 2017. Chinese hollygrape (Mahonia oiwakensis): newly detected weed. South African Plant Invaders Atlas (SAPIA) News 45:2-3. Last accessed August 24, 2017, from http://www.arc.agric.za/ARC%20Newsletters/SAPIA%20NEWS%20No.%2045,%20July%202017.pdf.
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- Pan, F.J. 1998. Mahonia oiwakensis. 2006 IUCN Red List of Threatened Species. Downloaded on 22 August 2007.
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