Yucca angustissima is a low-lying species forming colonies of basal
rosettes up to 3 m (10 feet) in diameter. Leaves are long and thin, up to 150 cm long but rarely more than 2 cm across. Flowers are white to cream or greenish-white,
pendant, borne in
racemes on stalks up to 2 m (7 feet) tall. Fruit is a dry capsule with black seeds.[8][9][10]
Yucca angustissima is relatively abundant, and although it has local threats, its population appears to be stable overall.[1]
Varieties
Numerous varietal names have been proposed, but 4 are currently recognized:[6][11]
Yucca angustissima var. angustissima—Arizona, Utah, New Mexico, Colorado
^USDA, NRCS (n.d.).
"Yucca angustissima". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 8 August 2015.
^Bowers, Janice Emily. 1993. Shrubs & Trees of the Southwest Deserts. Western National Parks Association, Tucson.
^Georg Engelmann. Annual Report of the Missouri Botanical Garden 13: 58–59, pl. 23, f. 1, pl. 24, f. 1, pl. 83, f. 6. 1902.