Scientific name: lumbricus terrestris
Scientific name: artemisia absinthium
Wormwood is a perennial shrub that grows to about 1 metre high. It has silvery grey leaves and small yellow flowers. It is native to parts of Asia and Africa. It grows well in drier climates and will tolerate poor soil. It is very easy to grow from hardened cuttings.
Wormwood is an ingredient in the drink absinthe and is used to flavor some other drinks and some dishes.
You are worried about something when you are thinking about it a lot, and it is keeping you from being happy. People can be worried about money, or a job interview, or how they have gone in an exam they just took.
Scientific name: family: troglodytidae