Flowers have evolved themselves to be very attractive to many animals and use these animals as vectors for the transferring of pollen, and after pollination, the ovary of the flowers develop into fruits & the ovules form seeds. Instead of all this flowers have been admired and used by humans to bring beauty to their environment since ancient times, they are also used as an objects of romance, medicine, ritual, religion and as a source of food. 

A flower consists of two main parts 

· The vegetative part, consisting of petals and associated structures in the perianth 

· The reproductive parts. 

Whereas, a stereotypical flower has four different parts which are attached to the tip of a short stalk which are arranged in a whorl on the receptacle. A floral formula is a term used to represent the structure of flower using some specific letters, numbers and symbols which present significant info about the flower. It was developed in the 19th century and their use has declined since. It can represent a taxon or a particular species. An extension of the existing model to extend the descriptive capability of the formula has developed by Prenner (2010). Though, format of floral formulae varies around the world but contains same information. Where, the structure of the flower can be expressed by means of floral diagrams. Such diagrams show important structures of flowers viz., relative positions of the different organs, the occurrence of fusion and symmetry, and their structural details. 

I will not go deep into their anatomy but what I love about these flowers is their beauty, the variation in their structure, color and much more. these are some amazing shots of flowers that I have taken during my visits. 

Different flowers have given some symbolic meaning (floriography) since ancient time viz. Lilies are often denoted as life or resurrection; Red roses as a symbol of love, beauty and passion, Daisies as a symbol of innocence; white roses as a symbol of peace ; poppies as consolation in the time of death and many more…And because of there variation and colorful appearance these are being a favorite subject of visual for artist as well. According to Hindu tradition flowers have an important status whereas Lord Brahma depicted sitting on a flower named sacred Lotus (Nelumbo nucifera). In spite of this, flowers are also used in traditional, rituals like pujas. People liking for flowers also varies, some admires the beauty of flowers while some love flowers for their aromas. 

For that we enjoy growing them in our gardens, backyards, outside our homes. They are also given as a gift on special occasions, rituals, holiday, such as Christening, at weddings and at funerals. First flowering plant has appeared on this planet around 140 million years ago & now they are grown or grow in almost every landform of this planet, from the highest mountains to the deepest valleys, and even underwater. As discussed above flowering plants & flowers come in an wide range of colors, shapes, sizes, and with different fragrances, where most of them generating fruits and seeds that human use for food, cosmetics and medicines. Besides they are the vital part of the earth’s eco-system. They do not only yield oxygen, but also provide food for many other life forms such as birds, insects and other animals. 

https://simple.wikipedia.org/wiki/Flower 

https://en.wikipedia.org/wiki/Flower 

https://www.nationalgeographic.com/science/prehistoric-world/big-bloom/ 

http://www.flowers.org.uk/flowers/ 

Prenner, G. (2010). "Floral formulae updated for routine inclusion in formal taxonomic descriptions". Taxon, 59(1): 241–250.