unicorn plant
noun
a North American plant, Proboscidea (Martynia) louisianica, having creamy-white to red flowers blotched with purple, and a woody capsule with a long, curved beak.
Origin of unicorn plant
First recorded in 1790–1800
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019