Dasylirion acrotrichum , Photo: Michael Lahanas
Dasylirion acrotrichum, the Great Desert Spoon and green Sotol (also, spoon yucca, though not a true Yucca now), is a plant native to the Chihuahuan Desert and other xeric habitats in northern and central Mexico. 
The foliage is firm narrow bladed leaves up to 40 inches long (1 m), grasslike and 0.4 inch across (1 cm), symmetrically radiating in a rosette, 6 feet (1.8m) tall by the same in diameter, from a central core that elongates into decumbent trunks. The mid Summer flower spike of small white flowers is 6 to 15 feet tall (2—5 m).
The drought-tolerant and dramatic plant is cultivated by nurseries for use in personal gardens and larger xeriscape landscape projects in the Southwestern United States and California. Dasylirion acrotrichum is hardy to 20°F (-6°C)
1. ^ NPGS/GRIN Dasylirion acrotrichum
Source: Wikipedia, Wikispecies: All text is available under the terms of the GNU Free Documentation License