Helene
Protection expiredLysimachia clethroides Duby · Gooseneck loosestrife
Public domain
Plant breeders' rights are granted for a limited term. Upon expiration, the variety enters the public domain: its seeds can be propagated and sold without the rights holder's license.
Recent years are the most sought-after: the variety is free to use but still in production.
Lysimachia clethroides Duby · Gooseneck loosestrife
Diascia Link & Otto · Twinspur
Nerine bowdenii W. Watson · Corn lily
Rosa L. · Rose
Gerbera L. · Gerbera
Chrysanthemum L. · Chrysanthemum
Tulipa L. · Tulip
Dianthus caryophyllus L. · Carnation
Gerbera L. · Gerbera
Rosa L. · Rose
Rosa L. · Rose
Prunus cerasus L. · Sour cherry
Callistephus chinensis (L.) Nees · China aster
Vicia faba L. · Broad bean
Phaseolus vulgaris L. · Common bean
Lilium L. · Lily
Dianthus caryophyllus L. · Carnation
Zea mays L. · Maize
Allium cepa L. · Onion
Lilium L. · Lily
Guzmania Ruiz et Pav. · Guzmania
Neoregelia carolinae (Beer) L. B. Sm. · Blushing bromeliad
Allium cepa L. var. cepa · Onion
Eupatorium L. · Joe-pye weed