Please tell me what kind of plant this is.

Check Baidu Encyclopedia or pictures.

According to the encyclopedia:

The juice of swallow's paw is poisonous. Don't let children eat it by mistake, otherwise it will cause redness, swelling, pain and blistering of the skin. If it is accidentally splashed into the eyes, it will lead to blindness. Of course, it's safe as long as it doesn't hurt the swallow's claws and cause it to drain juice, or even if it drains juice to avoid contact.

In fact, many plants that can purify the air, such as oleander and dripping Guanyin, are poisonous. Of course, toxic substances are limited to their juice and so on. As long as contact is avoided, it will not cause any harm to human body. Therefore, when cultivating indoor plants, we should understand their habits and be aware of them. When raising indoors, open more windows and pay attention to ventilation. It is best to do outdoor activities in the evening. [