Yucca

 

Yucca is a genus of about 40 species of Agave relative native of dry areas of North America. They form rosette of stiff leaves, and many develop a wooden trunk that can branch and become tree-like. The genus name "Yucca" is the Arawak name for the Tapioca (Manihot esculenta) of which genus Yucca was mistaken for.

The flowers are white or cream and organized in panicles. The branch or the plant that produced the flower does not die after blooming. The flowers have to be pollinated by the yucca moth to bear fruit. There is a distinction between Yucca defined by the fact that the fruit is either fleshy (like the Banana Yucca) or dry.

The frost resistance of Yuccas varies a lot depending on the species. Some species are extremely frost resistant, growing in the northern parts of the United States, up to Canada. Some species are frost tender. All the species prefer full sun and a good drainage.

Species and varieties
Yucca aloifolia (Spanish Bayonet)
Yucca baccata (Banana Yucca, Datil Yucca)
Yucca baileyi (Navajo Yucca)
Yucca brevifolia (Joshua Tree)
Yucca brevifolia var. jaegeriana
Yucca carnerosana (Giant Spanish Dagger)
Yucca constricta (Buckley's yucca, White Rim Yucca)
Yucca desmetiana
Yucca elata (Soaptree Yucca)
Yucca endlichiana
Yucca filamentosa
Yucca filifera (Tree Yucca, St. Peter's Palm)
Yucca gloriosa (Spanish Dagger)
Yucca recurvifolia (Pendulous yucca, Weeping Yucca)
Yucca rigida (Blue Yucca, Palmilla)
Yucca rostrata (Beaked Yucca, Big Bend Yucca)
Yucca rupicola (Twisted-leaf Yucca)
Yucca schidigera
Yucca thompsoniana (Thompson's Yucca)
Yucca torreyi (Spanish dagger, Torrey's yucca)
Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca valida (Datilillo)
Yucca whipplei (Whipple's Yucca, Our Lord's Candle)
Yucca acrotricha synonym of Dasylirion acrotrichum (Green Desert Spoon)
Yucca angustifolia var. elata synonym of Yucca elata (Soaptree Yucca)
Yucca angustifolia var. radiosa synonym of Yucca elata (Soaptree Yucca)
Yucca argospatha synonym of Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca arizonica synonym of Yucca baccata (Banana Yucca, Datil Yucca)
Yucca aspera synonym of Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca australis synonym of Yucca filifera (Tree Yucca, St. Peter's Palm)
Yucca baccata var. macrocarpa synonym of Yucca torreyi (Spanish dagger, Torrey's yucca)
Yucca boscii synonym of Agave geminiflora
Yucca brevifolia var. wolfei synonym of Yucca brevifolia var. jaegeriana
Yucca californica synonym of Yucca schidigera
Yucca canaliculata synonym of Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca circinata synonym of Yucca baccata (Banana Yucca, Datil Yucca)
Yucca concava synonym of Yucca filamentosa
Yucca elephantipes synonym of Yucca gloriosa (Spanish Dagger)
Yucca filamentosa var. concava synonym of Yucca filamentosa
Yucca filamentosa var. smalliana synonym of Yucca filamentosa
Yucca flaccida synonym of Yucca filamentosa
Yucca fragilifolia synonym of Yucca baccata (Banana Yucca, Datil Yucca)
Yucca funifera synonym of Hesperaloe funifera (Giant Hesperaloe)
Yucca gloriosa var. recurvifolia synonym of Yucca recurvifolia (Pendulous yucca, Weeping Yucca)
Yucca gracile synonym of Dasylirion acrotrichum (Green Desert Spoon)
Yucca longifolia synonym of Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca macrocarpa synonym of Yucca schidigera
Yucca macrocarpa synonym of Yucca torreyi (Spanish dagger, Torrey's yucca)
Yucca mohavensis synonym of Yucca schidigera
Yucca pendula synonym of Yucca recurvifolia (Pendulous yucca, Weeping Yucca)
Yucca radiosa synonym of Yucca elata (Soaptree Yucca)
Yucca recurvifolia synonym of Yucca filamentosa
Yucca scabrifolia synonym of Yucca baccata (Banana Yucca, Datil Yucca)
Yucca smalliana synonym of Yucca filamentosa
Yucca undulata synonym of Yucca treculeana (Spanish Dagger, Palma Pita, Don Quixote's lace)
Yucca utahensis synonym of Yucca elata (Soaptree Yucca)
Yucca verdiensis synonym of Yucca elata (Soaptree Yucca)
Yucca yucatana synonym of Yucca aloifolia (Spanish Bayonet)

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