苑 is literary and mainly appears in place names and classical expressions like 文苑 (literary world) or 艺苑 (arts circle). It also functions as a surname.
Top grass radical in its 3-stroke compressed form, marking 苑 as a place full of plants - originally an imperial hunting park stocked with game and lush vegetation; today found mostly in literary names of gardens and compounds.
Bottom 夗 supplies the sound - yuàn stays yuàn with no shift. It acts as a pure phonetic tag; the same phonetic appears in 怨 (to resent) and 宛 (winding).
