c. transkonensis
A Camellia species (C. transnokoensis) rather than a cultivar — a small-flowered wild species from Taiwan used in cold-hardiness breeding programs.
Listed in the collection as 'c. transkonensis' with the epithet 'Transnokoensis,' this is a Camellia species rather than a cultivar. C. transnokoensis is a small-flowered white species native to high-elevation forests in Taiwan, valued in breeding programs for its cold hardiness, compact growth, and profuse small blooms. It has been used as a parent in interspecific crosses, particularly in cold-hardiness breeding. No cultivar record exists in the International Camellia Register because this is a species entry. Source: Limited information available.