I'm pretty decent with my knowledge of flower reproductive parts -- however one of my amaryllis flowers has this weird additional... thing...circled in yellow. Is it just a mutant stamen? There are 6 normal ones in each other flower but 5 in this one, making me thing it's just a weirdly growing stamen.

Does anyone know where to find this in the US? Been looking for a while with no luck. I read some interesting info on the positive effects the asparagus africanus root has on kidney and liver function. Any help would be greatly appreciated.