Toxicity of Hydrangea macrophylla

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(Hydrangea macrophylla)

Scientific noun: Hydrangea macrophylla Ser.

Family: Saxifragaceae

Habitat: Species cultivated for gardening, native from Japan

Active components: Hydrangin and saponin

Active parts: The whole plant


Hydrangea flowers

Hydrangea flowers

Gardening uses of hydrangea

As a garden plant, hydrangea is a very common one. (More information)

Medicinal uses of hydrangea

As a medicinal plant, decoctions of its dried leaves have been used to treat intestinal disorders, such as gastric ulcer, reflux al ulcerous colitis.

Because of its toxicity, it is not advisable to take homemade medicinal products!!!

Toxicity of hydrangea

Hydrangea macrophylla has a high toxicity. Hydrangin is a cyanogenetic glycoside, that produces intoxications with similar symptoms to those of of the cyanide.

Another glycoside that produces hydrocyanic acid in contact with certain enzymes is amygdaline which appears in the seeds of many plants belonging to the rose family, such as plum tree (Prunus domestica); cherry tree (Prunus avium); apricot (Prunus armeniaca); peach tree (Prunus persica); or almond tree (Prunus dulcis).

Side effects of hydrangea

In minor doses, ingestion of this plant shows the following symptoms:




In major doses, which is quite unlikely because hydrangea is a bad tasting plant, the coonsequences are more severe:

– Asphyxia

Bad breath

Increase of heartbeat

– Respiratory failure and death.

Is hydrangea toxic to animals?

Similar symptoms have appeared in horses and cows that have eaten its tender buds.

punto rojo More information on plants.

Written by Editorial Botanical-online team in charge of content writing

19 March, 2019

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Botanical-online is an informative page that describes, among other topics, the traditional uses of plants from a therapeutic point of view. Their descriptions do not replace professional advice. Botanical-online is not responsible for self-medication and recommends consulting with the physician.