What is the common name for Cryptomeria japonica 'Sekkan-sugi'?

The common name "Sekkan-sugi" directly refers to the cultivar of Cryptomeria japonica, which is a Japanese cedar. This designation emphasizes the unique characteristics of this particular variety, which is known for its striking golden-yellow foliage. Native to Japan, the Sekkan-sugi cultivar is appreciated in landscape practices for its ornamental value and growth habit. Using the original name as the common nomenclature helps avoid confusion with other related species and cultivars that may share common names, ensuring clarity when discussing this specific plant.

The other options represent different species or cultivars of cedar trees and do not accurately describe Cryptomeria japonica 'Sekkan-sugi', which is uniquely identified by its own cultivar name. This highlights the importance of using precise terminology in horticultural practices to ensure effective communication regarding plant selection and care.