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Definition of rayless goldenrod
: a shrubby to herbaceous composite plant (Haplopappus heterophyllus synonym Isocoma wrightii) especially of open saline ground from Texas to Arizona and northern Mexico that lacks ray flowers and causes trembles in cattle
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More Definitions for rayless goldenrod
rayless goldenrod
nounray·less goldenrod | \ ˈrā-ləs- 
\
\Medical Definition of rayless goldenrod
: a shrubby or herbaceous composite plant (Haplopappus heterophyllus synonym Isocoma wrightii) that occurs especially on open saline ground from Texas to Arizona and northern Mexico and causes trembles in cattle
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The first known use of rayless goldenrod was in 1923
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