Alice Notten. Encephalartos woodii Sander. Kirstenbosch National Botanical Garden and South African National Biodiversity Institute. 2002年5月 [2006-11-16]. (原始内容存档于2006-10-16).
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Alice Notten. Encephalartos woodii Sander. Kirstenbosch National Botanical Garden and South African National Biodiversity Institute. 2002年5月 [2006-11-16]. (原始内容存档于2006-10-16).