Dendrobium parthenium comes only from Sabah, for the real ones. They are very easy to grow and clump easily, but they do not make many flowers open at the same time ( few per bulb, maybe 1-5).
I have got quite a lot of plants over the years from Malaysia of it, though I prefer other species like sculptum, ovipostriferum... and overall lowii... Funny, because mines just opened last week here.
When I visited first Malaysia in 1994, it was a really expensive rarity, so I decided to try to get some plants, and went nearly obsessed at that time by parthenium, ovipostriferum (the fake one, the dearei variety), sculptum (that is really a gorgeous species, growing well in Hanoi, but needs cold in winter and warm in summer)... :drool:
You have time, but an old plant of parthenium can reach about 2m+.
