sentences:  These are accompanied or replaced in the warmer regions and eroded by forests of Aleppo pine ("Pinus halepensis") and in areas of sandy ground and fixed sand dunes by juniper and stone pine forests.Exceptions to the rule are the more arid region in the southeast, the lower regions of the provinces of Murcia and Almeria, where the only vegetation is the European fan palm ("Chamaerops humilis"), and thorny thickets of blackthorn and at higher altitudes, Kermes oak groves and mastic ("Pistacia lentiscus").The same can be said of the salty or endorheic zones, with great differences in temperature, such as the depression of the Ebro, Hoya de Baza and the chalky marls further inland.