any tropical plant of the genus Gennera, native to South America, having enormous leaves resembling rhubarb.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any herbaceous perennial plant of the genus Gunnera, found throughout the S hemisphere and cultivated for its large leaves
Word Origin for gunnera
C18: named after J. E. Gunnerus (1718–73), Norwegian bishop and botanist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012