Stinging nettles

3. a successful way of curing an illness or dealing with a problem or difficulty
5. animals and plants that grow independently of people
6. a pain or illness that quickly becomes very severe
7. a plant that grows in an unwanted place, also a place overgrown with such plants
8. the part of a plant that grows down into the earth to get water and food
11. one of the flat, usually green parts of a plant that are joined at one end to the stem or branch
13. the use of leaves, branches, paints, and clothes for hiding soldiers or military equipment
16. pleasant and kind; not harmful
17. a disease or something bad that continues for a long time
18. land that can produce a large number of good quality crops is ...
20. relating to or made from herbs

1. a condition that causes illness when someone eats certain foods or touches or breathes in certain substances
2. a line of different types of bushes and small trees growing very close together
4. a substance used to change the colour of something
6. another word for extra, further
9. any feeling of illness or physical or mental change that is caused by a particular disease
10. something that is given to try to satisfy a person who has not been given the thing they really want
12. goods, advantages, or profits that you get by your actions
14. another word for farming
15. to improve the quality of something by adding something else
19. slightly wet, especially in a way that is not pleasant or comfortable