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Yucca

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For the potato-like vegetable, see yuca.
The yuccas comprise the genus Yucca of 40-50 species of perennials, shrubs, and trees in the agave family Agavaceae, notable for their rosettes of evergreen, tough, sword-shaped leaves and large terminal clusters of white or whitish flowers. They are native to the hot and dry parts of North America, Central America, and the West Indies.

Yucca brevifolia flowers
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Yucca brevifolia flowers

Yuccas have a very specialized pollination system, being pollinated by the yucca moth; the insect purposefully transfers the pollen from the stamens of one plant to the stigma of another, and at the same time lays an egg in the flower; the moth larva then eats some of the developing seeds, but far from all.

Yuccas are widely grown as ornamental plants in gardens. Many yuccas also bear edible parts, including fruits, seeds, flowers, flowering stems, and more rarely roots, but use of these is sufficiently limited that references to yucca as food more often than not stem from confusion with the similarly spelled but botanically unrelated yuca.

The Great Plains Yucca (Yucca glauca) is the state flower of New Mexico.

Species

Yucca baccata flowers
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Yucca baccata flowers

Magnificent Yucca filamentosa flowers
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Magnificent Yucca filamentosa flowers

A number of other species previously classified in Yucca are now classified in the genera Dasylirion, Furcrea, Hesperaloe, Hesperoyucca and Nolina.

Because of their omnipresence in the southwestern United States, yuccas have lent their name to several places:

References

Wikimedia Commons has media related to:
[Special]
Image:Yucca schidigera blooming.jpg|Yucca schidigera Image:Yucca filamentosa1.jpg|Yucca filamentosa Image:Yucca pallida.jpg|Yucca pallida Image:yucca_brooklyn.jpg|Yucca thompsoniana

 


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