International audienceMarrakesh was developed based on the classic model of the garden-city imbedded in an oasis. In the iconography and descriptions of writers and travellers, Marrakesh is indissociable from its palm groves and plants which confer a strong identity to a landscape the city has promoted for tourism. This image has increasingly become disconnected from reality, the garden-city and oasis image is fading away in the face of the extension and densification of the city. The palm groves and rows of trees have been retreating with encroaching urbanisation, golf courses, tourist complexes and villas, ever since the colonial period and increasingly in recent decades. The composition of this plant heritage is a reflection of various c...