Okay kiddo, so an archaeophyte is a plant that people used to grow a long time ago, but they still grow today. Kind of like how your grandma used to knit all the time, but she still knits today.
Archaeophytes are special because they have adapted to live with people for a really long time. People have been taking care of these plants for hundreds or even thousands of years, so they have gotten really good at surviving in our gardens and farms.
Some examples of archaeophytes are wheat, barley, and rice. These are all plants that people have been growing for thousands of years, and we still grow them today.They are really important because we eat them and they are a staple in our diet.
So, basically an archaeophyte is a plant that has been growing for a really long time with humans, and they still grow today because they are really good at growing around us!