Willow Identification Key: Tall shrubs, more than 2 m high

Tall shrubs, more than 2 m high; leaves with 6-20 pairs of veins, angle between midrib and veins more than 45 degrees (if less than 45 degrees then only 6-8 pairs of veins); anthers not reddish

Leaves bitter, almost hairless, bluish white beneath

Leaves bitter, almost hairless, bluish white beneath; buds yellow

Leaves not bitter, hairy, green beneath

Leaves not bitter, hairy or downy beneath at least when young, green beneath (although may appear whitish due to hairs); buds not yellow