Yucca

Rare card · No. 69277

Yucca ( YUK-ə) is both the scientific name and common name for a genus native to North America from Panama to southern Canada. It contains 50 accepted species. In addition to yucca, they are also known as Adam's needle or Spanish-bayonet. The genus is generally classified in the asparagus family in a subfamily with the Agave, though historically it was part of the lily family. The species range from small shrubby plants to tree-like giants, such as the Joshua tree. All yuccas have rosettes of leaves that taper to points and inflorescences with many flowers that are mainly cream white with thick petals. Though adapted to a wide range of climates the plants are xerophytes, ones that specialize in dry living conditions. The tight relationship between the yucca plants and their pollinators, the yucca moths from the genera Tegeticula and Parategeticula, is a well known example of evolutionary mutualism. They are an important part of the ecology of North American deserts, providing shelter to...

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