Name: Evelyn Sierra foothills, Northern CA (Zone 8a)
Kabby ~ Amaryllis and crinum have a similar form to daylilies. Irises grow from rhizomes not bulbs. Still, I do not know why they are referred to as scapes, and the flowering stems of irises are usually denoted as stalks.
"Luck favors the prepared mind." - Thomas Jefferson
Thanks for the information Evelyn. I didn't know there was a difference.
Looking at Wikidiff, a scape grows from a root and a stem grows from a bulb, rhizome, corm or tuber https://wikidiff.com/stem/scap....