Ooooo. That's a sweet one. I have no familiarity with this one, so can't help validate the ID.

But it sure is Nice!

I have nelsonii and I love it. Mine's just one clump right now and I'm rooting a leaf that my cats knocked off..

It's one of my favorites, completely plain green.

Nice plant!

I was very lucky to have been given this plant as a gift from a local collector. Its a pretty nice sized clump. Have you had your plant long enough for it to bloom?

My jaw literally dropped. Beautiful!

Hi. This plant is trifasciata 'Nelsoni'. To be specific,
note capital 'N', just one 'i', and in single quotes. It is a trifasciata cultivar name, so should be written as
I've done here to keep from confusing with a species name.
This is not a critical comment, just trying to help. This
will get a bit larger than your plants are now, mine get to
about a foot. It also propagates true from leaf cuttings,
there are many trifasciata cultivars that don't, and either
revert back to trifasciata, or produce an entirely different
cultivar.
I find the propagation of leaf cuts fascinating, and especially so within the trifasciata group.
Thanks for all these pictures, plants in great condition,
and gives a chance for people not familiar with lesser known
Sans to see what they look like.
Russ

Thanks for commenting, Russ. I appreciate the input.
The lady who gave me this plant assured me that it was NOT the trifasiciata sport and showed me examples of both. Her t. Nelsoni was a much larger plant, the leaves were a little darker. And, Hermine' book says the t. "Nelsoni" has dark green leaves and tends to have a waxy appearence. (Damm I wish the pictures in her book were in color) The leaves on my plant are a light but dull green. Perhaps the only way to confirm what I have is to do a leaf cutting and see what develops. Personally, I believe that is a cutting grows true it is more likely to be a species not a cv.

Hi again. I understand the confusion with our unidentified
Sans, and our quest to get a correct name. I'm not familiar
with the species nelsonii. However I used to have a plant
labelled PF-115 that had a spoon shaped leaf. I don't know
the accuracy of Hermine's reference to sp. nelsonii, but on
page 33 of her book she lists nelsonii (PF-115) as having
spoon shaped leaves with long petioles. I believe nelsonii, if this is actually a valid Sansevieria
name, doesn't look like trifasciata 'Nelsoni'. I suspect
the 2 plants from your source, if they looked the same
except in size and slight lighter or darker green, are the
same plant, with some difference in culture or age. Just
speculating here to try and find an answer. I'll try to find
some more info on species nelsonii, if there is an actual
plant, and its physical characteristics. If it's leaf is
spoon shaped as indicated by Hermine, your plant must be
trifasciata 'Nelsoni'. This is interesting, I'll get back
to you. A great many cultivars, including trifasciata 'Nelsoni', propagate true from leaf cuts, and all hybrids and species propagate true.
Russ

You know, Russ, you may be right. My plant's leaves definitely don't have petloles OR spoon shaped leaves. I'm going to mail that photo to Hermine and ask her. Unfortunately the lady who gave me the plant doesn't have a computer. I'm going to have to do something about that. Maybe I'll bring her a Dell catalog and suggest private lessons.