Welcome to the Forum, Phenolic!
While Kushi Maya has Lilium nepalense in its parentage, it and Lilium nepalense are unmistakeably different. Kushi Maya is far easier to grow. Lilium nepalense, being a wild species, varies greatly in form and color. This one can be green or only tinged greenish, with large dark chocolate centers or smaller not very dark centers. It's likely the vendors who sell them don't even know themselves what form they have, since the vendors usually don't grow them themselves.
FYI, since you're relatively new to lilies, species types in general normally have much smaller bulbs than hybrids, and tend to be less vigorous, too. It is very common for new bulb buyers to be disappointed when they receive their shipment of a species bulb that is small (compared to hybrids), when in fact it is the species' normal size.
