Yucca glauca Nutt.
Narrow-leaved Yucca, Soapweed Yucca, Beargrass, Soapweed
Soapweed yucca is a native of North America.
Identification: Plants are up to 3' (1 m) high × 4' (1.2 m) wide. The leaves are pale green, stiff, and sword-shaped, 8-40" (20-101 cm) long and up to ⅛-⅜" (6-12 mm) wide. 15-50 bell-shaped flowers, greenish-white, with six petals, hang from a stalk 12-80" (30-203 cm) tall. The seeds are in cylindrical capsules up 1-1¾" (3-4.5 cm) long.
See the Yucca page for a comparison with other yuccas.
Yucca glauca at the Lady Bird Johnson Wildflower Center
Yucca glauca on the USDA Forest Service's Fire Effects Information Database
Yucca glauca on New Mexico Enchantment
Yucca glauca on Plants for a Future, a resource and information centre for edible and otherwise useful plants
Yucca glauca on Missouriplants.com
Yucca glauca description by Thomas H. Kent, last updated 2 Jan 2019.
Range: Zones 4a-10b: