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Yucca glauca Nutt.

Narrow-leaved yucca, soapweed yucca, beargrass, soapweed

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassLiliopsidaMonocots (plants with a single seed leaf); includes the lily family
SubclassLiliidaeIncludes lilies, orchids, and many others
OrderAsparagalesA diverse group that includes asparagus
FamilyAsparagaceaeAgaves, asparagus, hyacinths, and others
GenusYuccaLinnaeus mistakenly derived the genus name from the Carib word for (similar-appearing) cassava, yuca
SpeciesglaucaLatin for “blue-gray”

About plant names...

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.

Online References:

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


Irish, Mary & Irish, Gary, Agaves, Yuccas and Related Plants: A Gardener’s Guide, Timber Press, 2000, p. 252


Yucca glauca description by Thomas H. Kent, last updated 25 May 2020.

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Yucca glauca (narrow-leaved yucca, soapweed yucca, beargrass, soapweed)

5/22/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts
≈ 31 × 46" (78 × 117 cm)

Yucca glauca (narrow-leaved yucca, soapweed yucca, beargrass, soapweed)

5/21/2009 · Grand Canyon South Rim, Ari­zona
≈ 4½ × 3' (1.5 × 1.0 m)

Yucca glauca (narrow-leaved yucca, soapweed yucca, beargrass, soapweed)

1/19/2021 · Garden in the Woods, Framingham, Mass­a­chu­setts

Range: Zones 4a-10b:

About this map...