What is "salix amygdalina"

Almond \Alm"ond\ ([aum]"m[u^]nd), n. [OE. almande, almaunde, alemaunde, F. amande, L. amygdala, fr. Gr. 'amygda`lh: cf. Sp. almendra. Cf. Amygdalate.]

1. The fruit of the almond tree.

   Note: The different kinds, as bitter, sweet, thin-shelled, thick-shelled almonds, and Jordan almonds, are the products of different varieties of the one species, Amygdalus communis, a native of the Mediterranean region and western Asia.

2. The tree that bears the fruit; almond tree.

3. Anything shaped like an almond. Specifically: (Anat.) One of the tonsils.

   Almond oil, fixed oil expressed from sweet or bitter almonds.

   Oil of bitter almonds, a poisonous volatile oil obtained from bitter almonds by maceration and distillation; benzoic aldehyde.

   Imitation oil of bitter almonds, nitrobenzene.

   Almond tree (Bot.), the tree bearing the almond.

   Almond willow (Bot.), a willow which has leaves that are of a light green on both sides; almond-leaved willow ( Salix amygdalina).
   --Shenstone.