https://www.rhs.org.uk/plants/193701/tulipa-duc-van-tol-salmon-(1)/details
Tulipa 'Duc van Tol Salmon' (1) | /RHS
duc vansalmon 1tulipatolrhs
https://www.rhs.org.uk/plants/285437/tulipa-duc-van-tol-white-(1)/details
Tulipa 'Duc van Tol White' (1) | /RHS
duc vanwhite 1tulipatolrhs