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definitions

gum plant

noun
  1. gumweed.

Origin of gum plant

An Americanism dating back to 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for gum plant

gum plant

gumweed

noun
  1. any of several American yellow-flowered plants of the genus Grindelia, esp G. robusta, that have sticky flower heads: family Asteraceae (composites)
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