Identifying hemlock, deadly plant, by its leaves. Resembles wild and cultivated carrots, parsley, celery and more.

Poison hemlock (Conium maculatum) leaves closely resemble the leaves of several edible plants.
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I want to talk to you about a plant that I HAVEN'T eaten.

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I haven't eaten this plant, because if I had, I wouldn't still be here.

This plant is Conium maculatum, commonly known as Poison Hemlock. (Also: English or European hemlock, carrot fern, Devil's porridge, spotted hemlock, wild hemlock and poison parsley) It should probably be known as deadly hemlock, as it's one of the most dangerous wild plants you can encounter.

I have read that poison hemlock is so toxic, it has poisoned children who used the hollow stems as whistles -- simply the act of putting it to their lips and later licking them.

C. maculatum, and the closely related (and equally deadly) Water Hemlock (Cicuta species) are members of the greater Apiaceae family. The Apiaceae family is the carrot family, and provides us with many of our most important cultivated edibles, including carrots, parsley, parsnips, fennel, dill, coriander/cilantro, anise and celery. Europeans will also know the food plant "Alexanders".

Because the deadly hemlocks are so closely related to many edibles (including wild carrots/queen anne's lace, sweet cicely, cow parsley, and--more distantly, alexanders (Europe only), parsnips and fennel) they closely resemble them as well, and it's essential for any forager to completely familiarize themselves with hemlock BEFORE they attempt to eat any wild plants in the Apiaceae family.

It's a good thing for gardeners to know about this plant, as it can spring up in their garden, and will resemble carrots, parsley and celery.

But this post will help you safely identify and avoid poison hemlock.

Note: this post deals exclusively with the young, pre-flowering plant, when it is most likely to cause confusion with edible plants like carrot and parsley.

Update: identification for beginners, novice and intermediate

Hey all, just a quick update. In general I try to keep all my identification posts geared towards plants and mushrooms that a beginner or novice can identify. But I've recently decided to start adding intermediate content as well.

As such, I've developed a new labeling system, and will tag each identification post with either "for beginner" , "for novice" or "for intermediate".

Making spore prints for wild mushroom identification, crafts, and science fun!

Hallo! So I ran a survey about 6 months ago, and I'm really really happy with the number of responses I got. To anyone who took it, thank you very much, I really appreciate the time you  put into helping me generate valuable content.

So the overwhelming thing people wanted to hear about was plant and mushroom identification. Another thing I got a lot of calls for were content more geared towards beginner and novice foragers.

One of the most foundational identification tools you'll need for wild mushrooms is knowing how to do a spore print.

What is a spore print?

All mushrooms reproduce with spores. Spores can be considered to be like seeds, except they are tiny--individually invisible to the naked eye. (There are other differences as well, but they aren't really relevant to foraging).

Though we can't see individual spores, they do have a color, and when a lot of them are together, the masses of spores form patches of color, which can be seen with your eye. Sometimes these colors are distinctive, and are a necessary tool to help positively identify one mushroom from another.

Many mushrooms look similar, but have different colored spores, so discovering the colors of the spores is the key to differentiating the species. For example, edible Blewits look similar to potentially deadly Cortinarius, but Blewits have a salmon pink spore print, and Cortinarius have a rusty brown one.