Buttercup

Poisonous location: fresh leaves and stems
Clinical symptoms: vomiting, diarrhea, abdominal pain.

Adiantum

Toxic location: all parts
Clinical symptoms: gastrointestinal inflammation, loss of appetite, vomiting, diarrhea;

Cycad Palm

Toxic location: all parts, especially seeds
Clinical symptoms: acute vomiting, diarrhea, fainting, severe cases can cause liver necrosis and even death.

Yew

Toxic location: all parts
Clinical symptoms: vomiting, central nervous system problems, and even acute death.

Solanum nigrum

Toxic location: all parts
Clinical symptoms: vomiting, diarrhea, lethargy.

Foxglove

Toxic Location: All Parts
Clinical Symptoms: Gastrointestinal problems, irregular heartbeat.