Alfred Waltemyer
Origin and parentage unknown.
Possibly an US hybrid.
The plant seems to be a triple hybrid of Pachyphytum x Echeveria x Graptopetalum :
The flowers indicate Graptopetalum as one parent, the very thick bracts and sepals remind of Pachyphytum and the shape of the inflorescence suggests the influence of an Echeveria.
Note : It is unknown whether this plant has already been published with a name; we are very interested in more information about it.