Children (8 direct children, 8 direct and indirect children):
Yucca angustissima subsp. avia
Yucca angustissima subsp. toftiae
Yucca angustissima subsp. kanabensis
Yucca angustissima var. angustissima
Narrowleaf yucca
Yucca angustissima var. avia
Yucca angustissima var. kanabensis
Kanab yucca
Yucca angustissima var. toftiae
Toft's yucca
Yucca angustissima subsp. angustissima