Look up blossom in Wiktionary, the free dictionary.
In botany, blossom is a term given to the flowers of stone fruittrees (genus Prunus) and of some other plants with a similar appearance that flower profusely for a period of time in spring. Colloquially flowers of orange are referred to as such as well. Peach (including nectarine) blossoms, most cherry blossoms, and some almond blossoms are usually pink. Plum blossoms, apple blossoms, orange blossoms, some cherry blossoms, and most almond blossoms are white.
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.