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Substances, plants and mushrooms

The list contains the most frequently asked about and most common causes of poisoning in humans. You can search for items by typing in a search word. If you do not find the item you are looking for, you may call the Poison Information Center 0800 147 111 to check if it is poisonous.

Plant and mushroom species and genera are listed depending on whether all species of a genus are poisonous or only some. Unfortunately, the Poison Information Center is not able to identify plants and mushrooms over the phone. Identification should always take place on the spot.

In addition to books on mushroom identification, mushroom experts can help you identify mushrooms. Experts can be found via mycological societies and the Martha Organization, for example.

To Poison Information Center's main page

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Thanksgiving cactus (Schlumbergera truncata)

Plants

The plant is non-toxic.

Thermometers

Substances

The coloured liquids used in thermometers are solvents. The amount of solvent in a thermometer is so small that treatment is not required.

Thistle (Cirsium)

Plants

The plant is non-toxic.

Thymus (Thymus)

Plants

The plant is non-toxic.

Tillandsia, Air plants (Tillandsia)

Plants

The plant is non-toxic.

Toadflax (Cymbalaria)

Plants

The plant is non-toxic.

Toothpaste

Substances

With fluoridine: The amount of fluoridine varies between toothpastes. Contact the Poison Information Centre to confirm toxicity.

Without fluoridine: A single dose is considered harmless

Tradescantia (Tradescantia)

Plants

The plant is non-toxic.

Tree Mallow (Lavatera)

Plants

The plant is non-toxic.

Tree houseleek (Aeonium)

Plants

The plant is non-toxic.

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