The Carissa macrocarpa (or grandiflora) belongs to the family Apocynaceae and it originates from the sub-tropical regions of South Africa. For this reason it is also known as Natal Plum (from the name of an African region). It is an evergreen thorny shrub that produces oval, fleshy and bright green leaves and beautiful, white, star-shaped and scented flowers. Like all the plants in its family the Carissa is poisonous but it generates fruits that have the shape of small red eggs that, once ripe, are perfectly edible.
The Euphorbia pulcherrima, known as Poinsettia or Christmas Star, is an ornamental plant originating from Mexico, where it spontaneously grows and where, in the wild, it can even reach a height between two and four meters. It belongs to the family Euphorbiaceae. It is a typically photoperiodic or brevidiurnal plant; for this reason it blooms during the winter when the days are shorter.