rayless goldenrod

noun

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

First Known Use of rayless goldenrod

1923

in the meaning defined above

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Medical Dictionary

rayless goldenrod

noun ray·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