Two of my best blooming orchids right now are both dendrobium NoIDs. One is a purple striped den and the other one is a dark red (black) dendrobium. Both are quite beautiful and large healthy plants. The first four pics are of the purple striped den and the last three pics are of the dark red/black den. The dark red den I am pretty certain it is a hybrid Dendrobium 'Black Pearl' because the seller told me this. I bought it on Shopee (similar to Amazon) which is the online retail seller for smaller buyers. The parent company is Kanjana Orchids in the Bangkok area, and the owner of Kanjana Orchids told me it was probably Den. Black Pearl. But there still isn't a 100% positive ID, so it remains a NoID.