white rose

Blossom is a term given to the flowers of stone fruit trees (genus Prunus) and of some other plants with a similar appearance that flower profusely for a period of time in spring. Blossoms are either pink or white depending on the species or variety. Nectarine blossoms, peach blossoms, most cherry blossoms, and some almond blossoms are usually pink. Plum blossoms, apple blossoms, some cherry blossoms, and most almond blossoms are white.

Blossom normally appear in spring before the fruit actually grows.

Blossoms provide pollen to pollinators such as bees, and initiate cross-pollination necessary for the trees to reproduce by producing fruit.

Blossom trees have a tendency to lose their flower petals in wind blown cascades often covering the surrounding ground in petals. This attribute tends to distinguish blossom trees from other flowering trees.

source:http://en.wikipedia.org/wiki/Blossom

rose flowers

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to mediate the union of male sperm with female ovum in order to produce seeds. The process begins with pollination, is followed by fertilization, leading to the formation and dispersal of the seeds. For the higher plants, seeds are the next generation, and serve as the primary means by which individuals of a species are dispersed across the landscape. The grouping of flowers on a plant is called the inflorescence.

In addition to serving as the reproductive organs of flowering plants, flowers have long been admired and used by humans, mainly to beautify their environment but also as a source of food.

source:http://en.wikipedia.org/wiki/Flower