Can grow to a relatively large plant compared to other A. pygmaea types, and with characteristic large double-flowers.
Regarded by many as a form of A. pygmaea. Found to be distinctive enough to be given specific status by Mosti & Papini (2011). There appear to be two different plants often referred to as A. friedrichiana; the plant given specific status here is that often included in A. pygmaea.
The original description is here.
Plants of this species in the collection include: