Leaving floral details aside, I have grown [Strumaria discifera] ssp.
bulbifera for
some years and it is very distinct vegetatively since it offsets
prolifically (every year each plant makes some new offsets). These plants
have linear, ascending, softly hairy leaves. In contrast, the four
different accessions (separate gatherings) of ssp. discifera I grow each
has different leaf morphology/presentation, and at least one has leaves
similar to ssp. bulbifera as described above but the plants are solitary.
Offsetting in this genus in general is uncommon, and I
would describe all four of these ssp. discifera as solitary bulbs. All
have been under similar conditions for 5-10 years.