Poison hemlock (Conium maculatum L.) has been spreading like wildfire throughout Greater Columbus in recent years, and if it has taken root on your property, now may be the best time of the year to ...

Poison hemlock, a deadly plant that can cause respiratory failure and death, is spreading throughout the U.S. Contact herbicides are the safest way to control poison hemlock, as all parts of the plant ...

Often mistaken for wild parsnip, carrot, or anise, the prolific seed producer poison hemlock (Conium maculatum) has gained a ...

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Mr. Editor, — The following paper was presented to the Medical Faculty of Harvard College as the graduating thesis of its author. It contains a number of valuable and original observations with regard ...