散落 means 'to be scattered (over an area)' — it describes objects lying in various places as a resulting state, often naturally (e.g., petals, clothes, villages). Unlike the active verb 散 (sàn) 'to disperse,' 散落 focuses on the static state after scattering; and unlike 分散 (fēnsàn), which is often transitive or deliberate, 散落 is intransitive and typically used with a location (散落在...).