The origins of this Heraldic shield are said to go back to the fourteenth century, to Edmund of Langley, the first Duke of York and the founder of the House of York as a cadet branch of the then ruling House of Plantagenet (although other reports suggest the rose and Yorkshire have links going back further than that). The actual symbolism behind the rose has religious connotations as it represents the Virgin Mary, who is often called the Mystical Rose of Heaven. The Yorkist rose is white in colour, because in Christian liturgical symbolism, white is the symbol of light, typifying innocence and purity, joy and glory.
During the civil wars of the fifteenth century, the White Rose was the symbol of Yorkist forces opposed to the rival House of Lancaster. The red rose of Lancaster would be a later invention used to represent the House of Lancaster, but was not in use during the actual conflict. The opposition of the two roses gave the wars their name: the Wars of the Roses (coined in the 19th century). The conflict was ended by King Henry VII of England, who symbolically united the White and Red Roses to create the Tudor Rose, symbol of the Tudor dynasty. In the late Seventeenth Century the Jacobites took up the White Rose of York as their emblem, celebrating "White Rose Day" on 10 June, the anniversary of the birth of James III and VIII in 1688.
At the Battle of Minden in Prussia on 1 August 1759, Yorkshiremen of the King's Own Yorkshire Light Infantry's predecessor the 51st Regiment picked white roses from bushes near to the battlefields as a tribute to their fallen comrades who had died. They stuck the plucked white roses in their coats as a tribute.Yorkshire Day is held on this date each year.
The Yorkist Rose was engraved on the coffin holding the remains of King Richard III, the last Yorkist king of England and the last to die leading his troops in battle, interred at Leicester Cathedral on 26 March 2015. The coffin was made by Michael Ibsen, a distant relative of the king, whose DNA helped to prove his identity.
More than 20 civic entities in Yorkshire have a coat of arms that includes the rose of York. When depicted at small size it is rendered more simply, more as a graphic image.
In heraldry The Rose of York is defined only in words Rose Argent barbed and seeded proper (a white Rose with sepals and seeds in their natural colours). According to the College of Heralds, the heraldic rose may be used with ether a petal at the top or with a sepal at the top. Traditionally, the rose is displayed with a petal at the top in the North Riding and West Riding but with a sepal at the top in the East Riding of Yorkshire, However this custom is often disregarded.
The Yorkist rose is used in the seal of the City of York, Pennsylvania, which is known as White Rose City. The town's minor league baseball team, which played in different leagues for several decades, was called the York White Roses.
The white rose is also featured on one of the hats for York's current minor league baseball team, the York Revolution. The hats are worn during War of the Roses games vs. the Red Rose City, the Lancaster Barnstormers.
The York Rose features on the shield of Canada's York University.
Queens County, New York uses the white and red rose on the county flag. Queens County was named after Queen consort Catherine of Braganza, spouse of Charles II who sent a fleet to New York in 1664 to recapture New Amsterdam from the Dutch and renamed New York for the Duke of York, James brother of Charles II.
White rose is also the coat of arms of Lithuanian town Alytus - the regional capital. It is also one of two coat of arms in the country that features roses. The largest pedestrian bridge built in 2013 - 2015 is also named "The bridge of White Rose". The name was chosen by the citizen of the town.