Ah, very interesting… So the different grades are not necessarily leaf size, but rather pluck quality… It does seem, though, that the pluck quality and small leaf size are closely related, though. Maybe this is similar to the preference for young leaves in green teas like Longjing.
As for Wikipedia, the quality of the popular articles is often good, but the articles for rare topics are often neglected or carry unreliable information. It’s all relative to the amount of oversight the article has, which generally follows the subject’s popularity. Many Wikipedia articles on tea include modern myths perpetuated by the tea trade (e.g. “____ tea was a tribute tea for many centuries and only available to emperors…..”, etc.).
