Phoenix atlantica in 1935 by the French botanist Auguste Chevalier. Its appearance is very similar to "Phoenix dactylifera", being more similar in form to "P. dactylifera" than to "Phoenix canariensis", and possessing characters of both. Tamareira is a clustering palm with 2 to 6 trunks, 5–15 m in height with dark green leaves 2–3 m in length. "P. atlantica" can be distinguished easily from "P. canariensis" by its clustering growth form and its shorter, straighter leaves. The Canary Island date palm is adapted to a wetter climate and cooler temperatures, down to −8 °C. Other distinctions between "P. atlantica" and "P. dactylifera"
Fruit tree forms Fruit tree forms Fruit trees are grown in a variety of shapes, sometimes to please the eye but mainly to encourage fruit production. The form or shape of fruit trees can be manipulated by pruning and training. Shaping and promoting a particular tree form is done to establish the plant in a particular situation under certain environmental conditions, to increase fruit yield, and to enhance fruit quality. For example, pruning a tree to a pyramid shape enables trees to be planted closer together. An open bowl or cup form helps sunlight penetrate the canopy, thus encouraging a high fruit yield