<i>Salvadora Persica</i>. Also called toothbrush tree, mustard tree, and mustard bush. This image includes the female flower and the fruit. The fibrous branches of this plant have been used for centuries as a natural toothbrush. a. The female flower. b. The fruit  &mdash; Whitney, 1889

Salvadora

Salvadora Persica. Also called toothbrush tree, mustard tree, and mustard bush. This image includes…