By way of background, on St Patrick's Day the late Queen Mother used to present shamrocks to serving personnel in the English regiment known as the Irish Guards.
A news bulletin on commercial Australian tv this morning said that the Duchess of Cambrige had presented "clovers" (yes, clovers!) Der!
From a more reliable source:
The Duchess of Cambridge has presented shamrocks to 40 members of the 1st Battalion Irish Guards at their St Patrick's Day parade in Aldershot. http://www.bbc.co.uk/news/uk-17413847
The tradition goes back to the first regimental St Patrick's Day in 1901.
Last year husband William was made an honorary colonel of the regiment and in June the couple decorated members for their Afghan service.
The ceremony was the duchess's first solo military engagement and will start an ongoing connection to the regiment.
Previously the presentation of the shamrocks was performed by the late Queen Mother. The regiment supplied the pallbearers for her funeral in 2002.
Those who watched the royal wedding will remember that Prince William wore the uniform of the Irish Guards.