from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A yucca, Yucca brevifolia, of the southwestern U.S. with spiky leaves.
from The Century Dictionary and Cyclopedia
- n. A small tree, Yucca brevifolia, found in some elevated desert regions of the western United States.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a large branched arborescent yucca of southwestern United States having short leaves and clustered greenish white flowers
Apparently from the resemblance of the tree to Joshua holding out his spear (Joshua 8:18: ‘And the LORD said unto Joshua, stretch out the spear that is in thy hand toward Ai; for I will give it into thine hand. And Joshua stretched out the spear that he had in his hand toward the city.’ KJV). (Wiktionary)