Book  (2021)  Page(s) 196-197.  Includes photo(s).
 
Damask roses ....'Förlångsö' ...Known in culture in Sweden since around 1900. ...Description .... The DNA profile of 'Förlångsö' is nearest to the reference 'Agathe Incarnata' from the collection of the Fredriksdal Rosarium, Helsingborg. This reference is classed as a Gallica in literature. According to Pom's DNA study it belongs to the Damask class.  The similarity index of 'Förlångsö' with 'Agathe Incarnata' is 65,2%. The next are 'Erik' and 'Beas Lustiga' with the highest similarity index of 56,0%. The indices wih 'Trigintipetala' ad 'Geschwinds Nordlandrose' are 51,9 respectively 50,0%.