the difference between the flag and the plant in four nation

The British Isles consists of  the nation of England,Wales,scoltand  and Ireland.There are many difference in four nation.Now I want to talk abot something about the national flag and plant of the four nation.
England is located in the southern part of Great Britain.The flag of England called St George's Cross.

The national plant emblem of England is the rose.

Wales is located on the western side of Great Britain.the flag of Wales called Dragon of Cadwallader.

The national plant emblem of Wales is the leek ,and daffodils are also often as a symbol of the country.

leek                             daffodil

Scotland is located in the northern part of Great Britain.Scotland has two flags,one is St Andrew's Cross

and the other is Lion rampant.The national emblem plant of Scotland is the thistle.

Ireland has two parts,which areNorthen Ireland（shown in red) and  The Irish Republic(shown in green). 

The national emblem plant of Ireland is shamrock.

 Northern Ireland is part of the United Kingdom. The flag of Northen Ireland called St Patrick's Cross.

The Irish Republic is an independent country , which is not part of the United Kingdom. Its flag called Republic of Irealand.