rosette: an ornament or pattern resembling a rose that is worn as a badge of office or as recognition of having won an honor
adornment: a decoration of color or interest that is added to relieve plainness
fothergilla: any of several deciduous low-growing shrubs of the genus Fothergilla having showy brushlike spikes of white flowers in spring and fiery red and orange autumn color; grows from Alabama to the Allegheny Mountains