Graines Palmier Washingtonia Robusta

Washingtonia Robusta palm tree |

Mexico's petticoat palm (Washingtonia Robusta) is a species of palm belonging to the genus Washingtonia (Palm trees) and the family of the Arecaceae (the palm trees).This palm meets in Basse-California and in Sonora where he grows in arid places, and at the bottom of canyons, sometimes in company du Brahea Brandeei.

5 seeds

His Stipe is extended to the base but then much thinner and gray than that of Washingtonia Filifera. It starts to more than 20 M, sometimes 30 M high. It is quite often slightly flexueous and more or less curved or bent, unlike that of Washingtonia Filifera which is generally straight. The panache of leaves then looks like a small toupet at the top of an endless rod. Which earned him the United States the name of " Skyduster Palm ", the " dust rag .

The Petioles do not exceed 1.50 M and have more prominent brown orange teeth than in Washingtonia Filifera. The base of the petiole is colored with brown red obviously. It is largely split and keeps a reddish shade for a long time, even when it is dry.

The leaves are fewer and form a shorter crown. They are brilliant green color and have a more circular shape. The segments are Bifids and falling and the wires are less numerous, even almost non -existent in the elderly. Finally, the leaves have a fairly visible whitish spot from below, at the meeting point of segments and petiole, but this task is only visible on plants that have already reached a certain size. The palm Washingtonia Robusta Pushes in warm and sunny regions. It supports high temperatures well and does not fear rare rains too much. He can bear the cold up to approximately −6 ° C.

It is a rapid growth palm. In the South, a young Washingtonia, planted in the ground, and the size of a large leek, becomes in a few years a palm tree almost three meters in height with a base of Stipe almost formed.

The Washingtonia Robusta obviously requires sunny exposure but as for the Washingtonia Filifera, it is indifferent to the nature of the soil, although it has a preference for alkaline alkaline lands [alkaline alkaline Like many palm trees from arid areas. It is a little less rustic than its Californian cousin but it is in any case well suited to the hot temperate climate.

This palm is very cultivated in the parks and along the streets in the regions with a mild climate in the United States. It is also very present in southern Europe and throughout the Mediterranean basin and in many subtropical regions of the world. In the region Provence-Alpes-Côte d´Azur in France, where the species is particularly present, as well as in the South and in Spain, the Washingtonia are victims of parasites like the butterfly Landays Archon, very widespread until England.

Contenu soumis à la licence CC-BY-SA 3.0. Source : Article Washingtonia robusta de Wikipédia en français (auteurs)