Four poisonous plants: hemlock (Conium maculatum), henbane (Hyoscyamus niger), opium lettuce (Lactuca virosa) and autumn crocus (Colchicum autumnale). Coloured engraving by J. Johnstone.

Date:
1855
Reference:
28008i

Licence: Public Domain Mark

Credit: Four poisonous plants: hemlock (Conium maculatum), henbane (Hyoscyamus niger), opium lettuce (Lactuca virosa) and autumn crocus (Colchicum autumnale). Coloured engraving by J. Johnstone. Wellcome Collection. Source: Wellcome Collection.

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