A tree that looks like populus with red patterns, with tree sap the colour of blood and does not bear fruits.
Coating a horse with its tree sap can tame it.
A barbed tree whose leaves are shaped like peppers and bears red fruits.
Consuming it can ward against evil.
A plant with a stem similar to the Chinese bellflower, bears black flowers but no fruits.
Consuming it makes you infertile.
A tree that looks like paper mulberry but has dark patterns and shines.
Carrying it on your person means that you will never lose directions.