Is it poisonous?
Considered toxic. Public sources list it as such; we have not verified this individually. The note covers its whole genus. Hydrangeas are moderately toxic if eaten, with all parts of the plant containing cyanogenic glycosides Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.
Easily confused with
- Hydrangea serratifolia — considered toxic
- Hydrangea integrifolia — considered toxic
- Quintinia sieberi
- Viburnum awabuki
Classification
- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Cornales
- Family
- Hydrangeaceae
- Genus
- Hydrangea
- Species
- Hydrangea seemannii
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