Untagged orchids (especially
hybrids) are
generally very difficult or even impossible to identify.
If there is a 'hunch' that a particular orchid matches a known cultivar, then a DNA test could be done, which has to be paid for if some reputable testing company is willing to do it.
There is a section for topics on identification though ..... head over to this section here for identification questions or discussions -
Click Here.
But, unless one has some luck on their side, usually nobody in the identification forum can provide an identity. Although, they could probably give some comments about what the orchid could
probably be. But it won't be with 100% certainty.
Actually, even for tagged
cultivar orchids - any change in DNA due to mutation (eg. mutuation in outcomes of a mericloning process) will mean that the tagged orchid is not what the tag says it is. Although, we usually go on 'trust'.
If the orchid (eg. a mericlone or clone) pretty much looks like what it is meant to look like upon flowering, then we just go with the tag. But for super pedantic formal identification, one could only be absolutely sure that the tag is correct by doing a DNA test and comparing the results with the DNA of the original orchid.
Now ----- for cases where individual plants from crosses (hybrids) have no DNA records, then proper book-keeping is required to ensure that growers know the ancestry, or lineage, or whatever it is. Losing the tag, or errors in records can likely lead to permanently lost identification.