As for me, this one looks like a Schomburgkia and acts like a Schomburgkia but it is called Ctna Maui Maid X Mcp Brysiana. If you look all of that up, you will find a load of Schomburgkia in the family tree. The spikes are 30 inches long with several flower buds on the last 3 or 4 inches.
Oncidium Sweet Sugar now has a full contingent of dancing ladies in formation in the OC.
Jim
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