BlueRidgeGardener23 said: Sue ~ I will at some point get the nomenclature out of my head and go by hemerocallis or simply daylilies. There's so many "lily" named plants which makes it difficult to accurately describe something by using the term "lily."
Blame whoever decided naming different plant species after a lily for this confusion
Right, that was long before modern methods made it possible to determine what was related to lilies and what was not, so anything that looked kind of lily-like got called a lily (and many were wrongly placed in the lily family, Liliaceae, originally, including the daylily). Now most plants with "lily" in the common name are known not to actually be a kind of lily. Daylilies were removed from the lily family in the 1980s when modern techniques showed the placement was wrong.
For the common name, there was an attempt to fix this 100 years ago when the American Joint Committee on Horticultural Nomenclature published that the common name for Hemerocallis should be spelled as one word, daylily, and not day lily, specifically because of the confusion having "lily" in the name of a non-lily was causing.
The confusion can have repercussions, unfortunately, when plant toxicities are an issue and people need to correctly identify a plant suspected of poisoning.