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On 20 September 2009, during a visit to the gardens at Brodsworth Park, an English Heritage property, situated on the Magnesian limestone ridge northwest of Doncaster (SE/5007), Colin Howes and Elizabeth Farningham of the Doncaster Naturalists’ Society encountered a single plant of a wild Dianthus species. A photograph of a single flower taken by Pip Seccombe was subsequently confirmed by Geoffrey Wilmore as Dianthus deltoides (Maiden Pink).

Although the plant in question appeared to be growing opportunistically in a scuffed gully (see photograph 2) on a steep bank bordering the steep (15%) path leading up from the rose pergola, it could have been introduced as part of the Victorian garden restoration

The site was visited again on 13 June 2010 and although additional clumps were located adjacent to the original patch, the ground flora of the bank, which included  Common Ivy (Hedera helix), Periwinkle (Vinca sp.), Wild Strawberry (Potentilla vesca), Columbine (Aquilegia vulgaris) (seedlings) and Violet (Viola sp.) had been strimmed so no flowers or buds were present.

A visit on 31 August 2010 successfully located some 11 discrete patches of the plant along a 12 meter stretch of the same bank. Again the ground-cover vegetation had been strimmed but a few late season flowers were present (see photograph 3). On this occasion two English Heritage gardeners working near by were asked about the plant but were not aware of it’s presence or whether it had been introduced. However in the new rockery at the far side of the gardens, a miniature Dianthus had been planted but this was the ornately flowered Fringed Pink (D. monspessulanus sternbergii).

In the context of South Yorkshire there were just two 19th century records of Dianthus deltoides (Maiden Pink), these from the lawns of Cantley Vicarage (SE/6101) in 1844-46 and from a gravely bank near the now defunct Sprotbrough Railway Station (SE/5301) in 1881. In the 1980s there was an ephemeral occurrence in limestone rubble near Thorne colliery (SE/7016).

In a wider Yorkshire context, the floras of North, East and West Yorkshire refer to very few records, most of which relate to the 19th of early 20th centuries.

The New Atlas of the British and Irish Flora (2002) only lists occurrences in 88 10km squares for the whole of Britain and Ireland, down from 144 in 1970 and The Vascular Plant Red Data List for Great Britain (2005) list it as 'Near Threatened'.