Yucca rupicola Scheele
Twistleaf Yucca, Twisted-leaf Yucca, Texas Yucca, Spanish Dagger
Agavaceae (Century-Plant Family)
Synonym(s): Yucca tortifolia
USDA Symbol: yuru
Texas yucca or twisted-leaf yucca foliage stays under 2 ft. tall, is edged with white or red. New leaves are straight but become twisted with age. Flowering stalks often over 5 feet tall, bearing a cluster of bell-shaped, white flowers with petals up to 2 1/2 inches long and an inch wide, appearing from April to June. On shallow, stony soil in fields, among scattered trees, and on canyon ledges.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Root Type: Fibrous
Leaf Retention: Evergreen
Leaf Complexity: Simple
Leaf Shape: Lanceolate
Leaf Venation: Parallel
Leaf Pubescence: Glabrous
Leaf Margin: Denticulate
Leaf Apex: Acuminate
Leaf Base: Truncate
Breeding System: Flowers Bisexual
Fruit Type: Capsule
Size Notes: Up to about 2 feet tall not in bloom. Up to about 6 feet tall in bloom.
Flower: Flower 4-7 cm long. Sepals 4-6.8 cm long/15-24 mm wide. Petals 4-7 cm long
Fruit: Seeds dull black 4-5.5 cm
Bloom InformationBloom Color: White , Green
Bloom Time: Apr , May , Jun
Native Distribution: Endemic to the Edwards Plateau, TX
Native Habitat: Dry, rocky, open areas; limestone ledges. mic. On limestone ledges and grass-covered plains of dense brush and open woodlands on the Edwards Plateau. Ende
Growing ConditionsWater Use: Low
Light Requirement: Sun , Part Shade
Soil Moisture: Dry
Cold Tolerant: yes
Soil Description: Rocky, limestone soils. Caliche type, Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay
Conditions Comments: Twist-leaf yucca is great to plant in dry, shady spots and shaded rock gardens. The white bell-shaped blossoms atop solitary flower spikes attract night-pollinating moths. The foliage is deer resistant, but they like to eat the blossoms.
BenefitUse Ornamental: Accent tree or shrub, Shortgrass meadow, Rock gardens
Conspicuous Flowers: yes
Fragrant Flowers: yes
Interesting Foliage: yes
Larval Host: Kendall's yucca skipper
Nectar Source: yes
Deer Resistant: Moderate
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Fredericksburg Nature Center - Fredericksburg, TX
Lady Bird Johnson Wildflower Center - Austin, TX
Texas Discovery Gardens - Dallas, TX
Brackenridge Field Laboratory - Austin, TX
Patsy Glenn Refuge - Wimberley, TX
NPSOT - Native Plant Society of Texas - Fredericksburg, TX
Texas Parks and Wildlife Department - Austin, TX
NPSOT - Fredericksburg Chapter - Fredericksburg, TX
NPSOT - Austin Chapter - Austin, TX
Jacob's Well Natural Area - Wimberley, TX
NPSOT - Williamson County Chapter - Georgetown, TX
Wildflower Center Seed BankLBJWC-1103 Collected 2007-09-15 in Blanco County by Lady Bird Johnson Wildflower Center
BibliographyBibref 355 - Landscaping with Native Plants of Texas and the Southwest (1991) Miller, G. O.
Bibref 354 - Native & Naturalized Woody Plants of Austin & the Hill Country (1981) Lynch, D.
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 281 - Shinners & Mahler's Illustrated Flora of North Central Texas (1999) Diggs, G. M.; B. L. Lipscomb; B. O'Kennon; W. F...
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
From the ArchiveWildflower Newsletter 1993 VOL. 10, NO.6 - Saving Trees and Plants at New Center Site a Big Job, Director's Report, Wildflo...
Additional resourcesUSDA: Find Yucca rupicola in USDA Plants
FNA: Find Yucca rupicola in the Flora of North America (if available)
Google: Search Google for Yucca rupicola
MetadataRecord Modified: 2022-09-08
Research By: LAL, GAP, JSC