Yucca rostrata

Yucca rostrata [2] also called beaked yucca, is a tree-like plant belonging to the genus Yucca. The species is native to Texas, Chihuahua and Coahuila.[3][4]

Detail of the trunk

Beaked yucca
Yucca rostrata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Agavoideae
Genus: Yucca
Species:
Y. rostrata
Binomial name
Yucca rostrata
Synonyms[1]
  • Yucca linearis (Trel.) D.J.Ferguson
  • Yucca rostrata var. linearis Trel.

Yucca rostrata has a trunk up to 4.5 meters tall, with a crown of leaves at the top. Leaves are thin, stiff, up to 60 cm long but rarely more than 15 mm wide, tapering to a sharp point at the tip. The inflorescence is a large panicle 100 cm tall, with white flowers.[3][4][5]

Cultivation

As one of the hardiest trunk-forming yuccas, Yucca rostrata can be grown successfully outdoors down to USDA hardiness zone 5 and is popular in the Southwestern United States. The tree-like plant is commonly seen in El Paso, Texas, Albuquerque, New Mexico, and Denver, Colorado.[6][7]

Cultivars
  • 'Sapphire Skies' has powder blue foliage.[8][9]
Natural range

References
  1. The Plant List Yucca rostrata
  2. Trelease, Annual Report of the Missouri Botanical Garden 13: 68, plates 40–42, plate 84, fig. 3, plate 93, fig. 2. 1902.
  3. "Botanica. The Illustrated AZ of over 10000 garden plants and how to cultivate them", p 941. Könemann, 2004. ISBN 3-8331-1253-0
  4. Trelease, William. 1902. Annual Report of the Missouri Botanical Garden 13: 68, plates 40–42, plate 84, fig. 3, plate 93, fig. 2. Yucca rostrata
  5. Ferguson, David J. 1996. Cactus and Succulent Journal (U.S.) Los Angeles 68(3): 130, Yucca linearis
  6. http://www.botanicgardens.org/blog/yuccalicious-succulent-delights-denver-botanic-gardens-yuccarama
  7. http://www.hardytropicalplants.com/2012/07/yucca-rostrata.html#.VSgija7JRBY
  8. Plant Delights Nursery, The Woodlands Texas, Sapphire Skies for sale/
  9. Mobnrovia Horticultural Craftsmen, Azusa California, Sapphire Skies Beaked Blue Yucca
  • Fritz Hochstätter (Hrsg.): Yucca (Agavaceae). Band 1 Dehiscent-fruited species in the Southwest and Midwest of the USA, Canada and Baja California , Selbst Verlag, 2000. ISBN 3-00-005946-6
  • Fritz Hochstätter (Hrsg.): Yucca (Agavaceae). Band 2 Indehiscent-fruited species in the Southwest, Midwest and East of the USA, Selbst Verlag. 2002. ISBN 3-00-009008-8
  • Fritz Hochstätter (Hrsg.): Yucca (Agavaceae). Band 3 Mexico , Selbst Verlag, 2004. ISBN 3-00-013124-8
  • Die Gattung Yucca Fritz Hochstätter
  • Yucca I Verbreitungskarte I Fritz Hochstätter


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