There are many kinds of willows and they are so unlike that you would hardly believe them to be relations.
There are some so small and wretched that they creep along the ground. They live on the heath, or high up in the mountains, or in the cold arctic regions. In the winter, they are quite hidden under the snow; in the summer, they just poke up their noses above the tops of the heather.
There are people who shrink from notice because they are so badly off. It is simply stupid to be ashamed of being poor; and the little dwarf-willows are not a bit ashamed. But they know that the soil they grow in is so poor that they can never attain the height of proper trees. If they tried to shoot up and began to carry their heads like their stately cousins the poplars, they would soon learn the difference.
For the poplars are their cousins. They are the stateliest of all the willow-trees and they know it, as any one can see by looking at them with half an eye. You only have to notice the way in which they hold themselves erect to perceive it.
The beech and the oak and the birch and whatever the other trees are called stick out one polite branch on this side and one polite branch on that.
"May I beg you kindly to give me a little bit of sunshine?" says the branch up in the air.
"Can I help you to a little bit of shadow?" says the branch down by the ground.
But the poplars sing a very different tune. With them it is:
"Every branch straight up on high! Close up to the trunk with you! There's nothing to stare at down below! Look above you! Heads up!.. March!"
And all the branches strut right up to the sky and the whole tree shoots up, straight and proud as a pikestaff.