Ok, then. Lets make a list of 11 plants easy to recognised to help society:

• clover
• dandelion
• blackberry thorn
• nettle
• mint. There is different types so this one can be trickier that the others. The leaves are rounded or on the rounded-side and smell like mint when rub btw the finger
• daisy
• daffodil
• cowslip
• mallow
• bindweed
• oaktree

Here you go. Enjoy saving society from its decline.