Trees Every Child Should Know: Easy Tree Studies for All Seasons of the Year

by Julia Ellen Rogers

Along the roadsides, along rivers, and in the woods grow the black or yellow locusts that bloom in June, covering their ugly limbs with a cataract of white, pea-like blossoms, in large clusters. All summer the slim, thin pods are velvety and green, with a lovely flush of rose, as they swing among the feathery, fern-like leaves. In autumn the pods turn brown, and in winter, when the wind can switch them against the bare twigs, they split, and one by one, the hard little seeds are shaken out. They are too heavy to be carried in the wind. So we see little locusts coming up among the old ones, and on the outer edges of the clump.

No tree is so discouraged-looking, unkempt, and diseased as a black locust infested with the borers, and stripped of the foliage that covered its thin, irregular limbs in the summer time. The buds, even, are hidden, and the tree looks as if life had left it. But the late spring denies the rumour by clothing the dead-looking twigs with foliage whose tender shadings and delicate leaf forms make it one of the most graceful and lovely of all native trees.

Unfortunately, we cannot have locusts of this species in this Eastern country without exposing them to the attacks of insects against which we cannot defend the trees. The eggs are laid in clefts of the bark, and the grubs hatch quite out of reach of poisons and other damaging spraying solutions. They feed on the living substance under the bark, and their presence is shown by swellings above their burrows. Twigs, limbs, and trunks are distorted, and gradually the tree loses vitality, and the wood is made worthless by the honeycombing it receives. Only in the mountainous parts of its range does the black locust reach its best growth. No tree has better lumber for posts and other uses requiring durability in contact with the soil and with water.

The clammy locust is a pink-flowered species with a sticky substance exuding from the hairy surface of new shoots. The flowers are lovely but scentless. The trees are much planted in parks and on lawns as an ornament, in all temperate climates.

The honey locust earns its name in the summer time, when the curving green pods are full of a sweet, gelatinous pulp. Boys would like to get these honey pods, but the vicious thorns permit no climbing of the trees. Stoning and other throwing of missiles is a slow and unsatisfactory means of obtaining the forbidden fruit that hangs so high. By the time they ripen and fall off the pods are bitter as gall.

An old-world relative has thick, purple pods, which are sweet and palatable when ripe. These are brought to this country, and sold on small fruit stands under the name, St. John’s bread. It is said that this was the food of John the Baptist in the wilderness.

The Kentucky coffee tree is the coarsest member of the locust family in our woods. Its pods are thick and short, and the seeds inside are as large as hazel nuts. In the story of the Revolutionary War, the patriotic citizens refused to pay duties on imported goods. The seeds of this locust were used as a substitute for coffee. I have tasted the bitter outside of one of these nuts, and tried to break one with a hammer, but unsuccessfully. It is not easy to understand how a beverage made of such a nut could have been fit to drink. The name of the tree seems to give colour of truth to the tradition.

A coffee tree much like our native species grows in China. We may believe that it is called by another name, for the people use its heavy pods for soap. Whether green or ripe, I do not know.

The club-like branches of our coffee tree give it a burly, clumsy appearance in winter, when nothing conceals them from view. The dangling pods rattle against the bare, stubby twigs, calling attention to their lack of grace and symmetry. Even the buds are out of sight, buried under the thin bark, just above the big leaf scars. All winter the wind strives with the stubborn pods. When one is torn off, it lies unopened until melting snow softens it, and the horny seed lies long before it is able to sprout.

A thin pod adorns the most delicate of the locust trees. This is the little red bud, a flat-topped tree, of slender, thornless branches, most of them horizontal. Early in spring this tree earns its name. Quantities of rosy magenta, pea-shaped flowers cluster on its slim, angular twigs, quite covering the smaller branches. It is an unusual colour, and an unusual time to see pea-blossoms. You cannot forget it, if you have seen the tree once.