Hi
everyone.

Eric
- I think you can rule out your plant being Bill. ‘Windii’ as everything I've seen and read of this
plant suggests it's helicoid (has petals slightly recoiled resembling a watch
spring) although the flowers on your plant don’t appear to have this feature.
(See pictures on the FCBS Photo Index No. 413)

The
BCR describes Bill ‘Windii’ as: Small plant with rigid grey-green pointed
leaves - pendulous inflorescence; whereas your plant is quite tall with an upright
inflorescence.

See:
http://registry.bsi.org/?genus=BILLBERGIA&id=1192#1192

As
for Bill. ‘Albertii’, although it is registered on the BCR as a hybrid from a
crossing between Bill distachia x Bill.
nutans according to the literature on the same page it still seems the ID
is not positive and its origin is uncertain.

See:
http://registry.bsi.org/?genus=BILLBERGIA&id=674#674

Sorry
I can’t be of more help, but until you get a positive ID I woud suggest you
just call it Billbregia ‘NOID’ (No I.D.) and enjoy it.

I’d
just like to add that it’s a striking looking plant and I wish it was in my
collection instead of yours.

All
the best, Nev.