Weed

A weed is a plant that people think is an impurity, because it is growing invading the plant's space. Only smaller plants are often called weeds.How to get rid of weeds

A person may grow plants because it has  flowers, but other people may think that this plant is a weed for some reason. This may be for one of these reasons:
It has pollen that makes them sneeze
It spreads seeds that will grow quickly
The roots go too far under the ground and can cause damage to houses or pipes
The roots spread quickly
The plant has poisonous berries
The plant has liquid (sap) in it that can hurt a person's skin

If someone is farming a plant and it then moves outside the farm, the plant may then be called a weed.

Some plants are very hard to stop once they start growing. These are called invasive weeds. 

Weed can also be a name for any wild plant, one that people do not use for anything and invading their space.

 Commons weeds 
Common weeds include:

 Dandelion
 Cirsium arvense
 Ground ivy
 Quackgrass

 References 

Category:Types of plants