https://www.rhs.org.uk/plants/68155/lilium-martagon-netherhall-white-(ixc-d)/details
Lilium martagon 'Netherhall White' (IXc/d) | /RHS
lilium martagonnetherhallwhiteixcrhs
https://www.rhs.org.uk/plants/254188/lilium-martagon-var-daugavense-(ixc-d)/details
Lilium martagon var. daugavense (IXc/d) | /RHS
lilium martagonvarixcrhs
https://www.rhs.org.uk/plants/101938/lilium-martagon-inshriach-(ix)/details
Lilium martagon 'Inshriach' (IX) | /RHS
lilium martagoninshriachixrhs