Tillandsia neglecta is similar to Tillandsia araujei and some of the forms of Tillandsia tenuifolia such as Tillandsia tenuifolia Silver Comb. The leaves of Tillandsia neglecta are thicker and more succulent that the others. Also, the leaf sheaths (bases) are dark purple, almost black. The blooms are gorgeous and large and the blue petals distinguish it from the white of the flowers of Tillandsia araujei and Tillandsia tenuifolia Silver Comb.