A flowering plant is a angiosperm and we are mystified by the origins but as far as history goes have flowers appeared around 90 million years ago and a flowering plant today is diverse and abundant and an utter joy. Many years ago all plants were generated from spores in two different types. Megaspores and microspores which were the two plant types to determine whether it is male or female. However nature is fantastic and fertilization or pollination via insects and bird are how flowers evolved. Flowers have a long history with archeologically findings indicating that in the Nile Valley over 17,000 years ago were 25 different species present. During these findings they also found that some species like madder family plants provided dyes to people.
23BC a Roman studies wild plants and cited that they were useful for man and bees as food source as well as many medicinal uses too. Dioscorides, a Greek had 650 species which he described at the time and he is also known as the Medical Botany father, this was in 50 AD.
Looking at history you also find flowering plants thus wildflowers were in Roman and Greek times and over 500 plant species are referred to in the Athenian botanical gardens 300 BC.
During the early middle ages more books were written by various monasteries depicting hundreds of species for herbal uses of plants with the 1530 publication of Herbarium Vical Eicones.
Herbal of Generall Historie of Plants is another very famous book that was published in 1597 and just more than twenty years later another book saw the light where 6000 species were named. Now you can see how rapidly plants have evolved through the centuries and continue to grow. Throughout the 17 and 18th centuries more species were discovered and plant expansion grew rapidly.
During the 19th century and modern day we know that wildflowers gardening descend directly from early innovators and their love for beauty as we still have today.