Unknown herbaceous plant

Have gone through Liliaceae listed for the bed the attached is in, but can't find a match. Am I even in the right family. Does the sheath (pic #2) provide a clue?

 

Re: Unknonw herbaceous plant

Could be some Disporum.

 

Thanks - you, Andy. I think D. longistylum - it's in another bed, and is the best match of the three species listed for the whole garden.