How can I protect Twisted-leaf Yucca from extreme temperatures? - PictureThis
Find Trees & Learn | University of Arizona Campus Arboretum
North Haven Gardens - Yucca rupicola 'Twist leaf Yucca' - Native Texas yucca that stays small, under 2' tall! Beautiful white bloom stalk in the spring. | Facebook
Flora Fact: A Yucca With Twisted Leaves | TPW magazine | May 2016
Yucca rupicola - Wikipedia
Yucca rupicola (Twistleaf yucca) | Native Plants of North America