Analysis of information sources in references of the Wikipedia article "Welwitschia" in English language version.
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: CS1 maint: postscript (link)Although Welwitschia produces no growth rings, radiocarbon dating is feasible and results have indicated maximum ages in excess of 1,500 years.
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: CS1 maint: postscript (link)The plant's common name is onyanga, which means "onion of the desert."