willow
Plant
Shrub or large tree
Deciduous
Numerous species vary considerably
Twig
Alternate leaf arrangement
Bark
Light gray, with green or yellow vertical grooves
Leaf
1½-6" long, narrow
Simple, toothed edges
Flower
Tiny, clustered in short, upright catkins
Dioecious (male and female flowers on separate plants)
Flower buds fuzzy (pussy willow)