The disclosure relates to a method for the generation of plants, such as Euphorbia pulcherrima, having a dysfunctional glutathione S-transferase (GST), and the seeds, plant parts or plant cells derived therefrom. The disclosure further relates to a molecular marker capable of identifying a dysfunctional GST gene, to isolated DNA encoding such a dysfunctional GST gene and to the use of such DNA for the preparation of a molecular marker and for use in methods of targeted mutagenesis to inactivate the GST gene to generate plants with a white foliage phenotype.

A new and distinct cultivar of Poinsettia plant named Rineab, characterized by its upright and uniformly mounded plant habit; moderately vigorous growth habit; freely and upright to somewhat outwardly branching habit with thick and sturdy lateral branches; dark green-colored leaves that are oak leaf-shaped; early flowering habit; inflorescences with vivid red-colored flower bracts that are oak leaf-shaped; and good post-production longevity.

A new and distinct cultivar of Poinsettia plant named Rinean, characterized by its relatively compact, uniform, upright and mounded plant habit; moderately vigorous growth habit; freely and upright to somewhat outwardly branching habit; dark green-colored leaves; early flowering habit; inflorescences with strong red-colored flower bracts; and good post-production longevity.

A new and distinct cultivar of Euphorbia plant named INCHADIACL, characterized by its mounding to semi-trailing plant habit; moderately vigorous growth habit; freely branching habit; freely flowering habit; and inflorescences with multiple white-colored flower bracts.

A new cultivar of Euphorbia plant named KM-MM024 that is characterized by its new foliage and stems that are dark burgundy red in color with the foliage changing to very deep burgundy color in colder weather, its strong upright stems that do not lodge, its strong and vigorous basal stems, and its flower bracts that are bright yellow in spring.

A new and distinct cultivar of Poinsettia plant named Duepowhiwon, characterized by its upright to slightly outwardly spreading and uniformly mounding plant habit; moderately vigorous growth habit; strong lateral branches; relatively early flowering habit; inflorescences with large pale yellow-colored flower bracts; and excellent post-production longevity.

A new and distinct cultivar of Poinsettia plant named Dopoinatla, characterized by its upright to slightly outwardly spreading and uniformly mounding plant habit; moderately vigorous growth habit; strong lateral branches; relatively early flowering habit; inflorescences with large deep red-colored flower bracts; and excellent post-production longevity.

A new and distinct cultivar of Poinsettia plant named PER1549, characterized by its moderately compact, uniform, upright and mounded plant habit; moderately vigorous growth habit; freely and upright to somewhat outwardly branching habit; dark green-colored leaves; under natural season conditions, plants flower on or about November 25 in Southern California; large inflorescences with bright yellow to yellow orange-colored flower bracts; and good post-production longevity.

A new poinsettia plant particularly distinguished by having red bracts with white spots and very good keeping quality is disclosed.

A new poinsettia plant particularly distinguished by having red bracts, high vigor, and very good keeping quality is disclosed.