ירמיהו יז:ו פירוש: רש״י

like a lonely tree like a lonely tree, an expression of (Gen. 15:2) “Childless (עֲרִירִי),” and some say (degat in O.F) laid waste, and Menahem (Machbereth Menahem p. 137) explained: The name of a tree of the forest trees, and its name is ar’ar, and this is the explanation of (infra 48.6) “Like an ‘aroer’ in the desert,” one of the trees of the forest.

in the plain an expression of a plain.

parched land aridness. Comp. (Job 30:30) “Became dry (חָרָה) from heat.”