Shittah-tree

(Isa. 41:19; R.V., "acacia tree"). Shittah wood was employed in
making the various parts of the tabernacle in the wilderness,
and must therefore have been indigenous in the desert in which
the Israelites wandered. It was the acacia or mimosa (Acacia
Nilotica and A. seyal). "The wild acacia (Mimosa Nilotica),
under the name of "sunt", everywhere represents the seneh, or
senna, of the burning bush. A slightly different form of the
tree, equally common under the name of "seyal", is the ancient
'shittah,' or, as more usually expressed in the plural form, the
'shittim,' of which the tabernacle was made." Stanley's Sinai,
etc. (Ex. 25:10, 13, 23, 28).