What is the scientific name for the Thundercloud Plum?

The scientific name for the Thundercloud Plum is indeed Prunus cerasifera 'Thundercloud'. This name consists of the genus and species, Prunus cerasifera, which identifies the species commonly known as the cherry plum. The additional designation 'Thundercloud' refers to a specific cultivar known for its striking foliage, which displays deep purple leaves that can enhance ornamental landscapes.

Prunus is a genus that includes many fruit-bearing trees and ornamental plants, and cerasifera is the species that encompasses varieties used primarily for their aesthetic appeal and hardiness. The 'Thundercloud' cultivar is particularly favored due to its unique coloration and the visual interest it adds to gardens.

In contrast, other options represent different species entirely. Prunus serrulata 'Kwanzan' refers to a type of cherry tree, specifically the Kwanzan cherry, which is distinct from the Thundercloud Plum. Nyssa sylvatica, commonly known as black gum or tupelo, and Quercus coccinea, known as scarlet oak, are unrelated tree species, representing entirely different genera and families. Understanding the taxonomy and specific naming conventions in horticulture helps in correctly identifying plants and their cultivars.