A weed is defined as a plant growing where it is not wanted. This could potentially include a vast number of plants depending on time, location or circumstance. In agricultural guides, weeds are generally classed according to their habits, e.g. annual, biennial or perennial, and/or their leaf shape e.g. grass or broadleaved. This is the system that we are using here. In some guides they maybe grouped according to colour of flower, time of flowering, or sometimes, grouped by the crops in which they occur.
We have generally assumed a basic familiarity with weeds. If you have a weed that you want to identify we recommend that you try one or more of the following:
- If you know the general habit of the weed you might be able to identify it from the information contained on this site
- use a reference book
- use a web based guide
- If you still can