American Tract Society Bible Dictionary
Hosea 10:4 Amos 6:12 , in Hebrew, ROSH, usually translated gall or bitterness, Deuteronomy 32:32 , and mentioned in connection with wormwood, Deuteronomy 29:18 Jeremiah 9:15 23:15 Lamentations 3:19 . It indicates some wild, bitter, and noxious plant, which it is difficult to determine. According to some it is the poisonous hemlock, while others consider it to be the poppy.
These files are public domain and are a derivative of the topics are from American Tract Society Bible Dictionary published in 1859.
Rand, W. W. Entry for 'Hemlock'. American Tract Society Bible Dictionary. https://www.studylight.org/dictionaries/eng/ats/h/hemlock.html. 1859.