This is a duplicate, incorrect or outdated name for H. 'Fortunei Obscura'.

According to The Hostapedia by Mark Zilis (2009), "I consider the name 'Bella' to be horticulturally inactive and defer to the more commonly used 'Fortunei Obscura'.

The Genus HOSTA by W. George Schmid (1991), says that This is a duplicate, incorrect or outdated name for  H. 'Ribbed Beauty'.

An article from the German perennial society, Bund Deutscher Staudengärtner (BdS) says that this cultivar was originated by Heinrich Rudolf Wehrhahn (1887-1940) of Germany but is now considered synonymous with H. 'Fortunei Obscura'. At one time it was also known as Hosta bella 'Wehrhahn' although there is no such species as H. bella.