• Webster's Revised Unabridged Dictionary
    • n Cowbane kou"bān` (Bot) A poisonous umbelliferous plant; in England, the Cicuta virosa; in the United States, the Cicuta maculata and the Archemora rigida. See Water hemlock.
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Century Dictionary and Cyclopedia
    • n cowbane A popular name of the Cicuta virosa, or water-hemlock: so named from its supposed injurious effect upon cows. See Cicuta.
    • n cowbane An American umbelliferous swamp-plant, Oxypolis rigidior, ranging from New York to Florida and westward to Minnesota and Louisiana, supposed to be poisonous to cattle. Also called hemlock-dropwort: and water-dropwort. See cut in middle column.
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