It has Gothic tracery with trefoils and quatrefoils which end with nuns. In smaller churches, clerestory windows may be trefoils or quatrefoils. This is a cusped ogee window with trefoils carved into the spandrels. Arms - Argent, on a chevron sable, between three trefoils slipped vert, as many bezants. The carved decorations include trefoils, flowing tracery, rosettes, gargoyles, and at prominent lookouts, grotesques. Favourite flowers are clovers, ling, harebell and "Scabiosa" as bird's-foot trefoils. The surround consists of overlapping arches, with the interstices pierced by trefoils. It generally contains the fleur-de-lis, trefoils, etc. Two molded semi-circular arches with tympanums decorated with trefoils stand above the doors. The line-impressed designs included masks of lions or other animals, rosettes, and trefoils. The platband of the southern portal's architrave is framed with rows of trefoils. The bottom half is curvilinear, pierced with trefoils and applied moulding. The east window of the chancel is an early-14th-century lancet with three trefoils. The basement windows are small trefoils with a triangular pane at their centre. A line "trefly" shows protuberances in the form of trefoils.