What is the meaning of Huisache?

The needle bush or sweet acacia (Vachellia farnesiana), a thorny tree of the genus Vachellia, native to Mexico and Central America.

the needle bush or sweet acacia (Vachellia farnesiana), a thorny tree of the genus Vachellia, native to Mexico and Central America

Any of various trees of the genus Havardia.

Source: wiktionary.org