The leaves that soon follow are as unusual as the flowers. Roundish, heart-shaped, smooth, and shining as if polished, they flutter on thin, flexible stems, and the slim pods hang among them. They ripen and turn from green to rich purple when the leaves change to bright yellow. The hard little seeds are close together in the pods, so that they are numerous, though the pods are but two or three inches long.
I do not know when the red bud is most charming. Certainly its autumn garment of yellow is beautiful, trimmed with a fringe of purple pods. It is a royal robe, and so fresh and new-looking when the foliage of so many larger trees is faded and in tatters. The trees that hide in the shelter of larger ones can often save their leaves from wear and tear, and this the red bud does.
Judas tree is the name by which the red bud of Europe is commonly called. It is one of a few species to which an ugly tradition has been fastened by custom. It is said that this is the kind of tree upon which Judas Iscariot hanged himself. Our little American tree has had to share the disgrace, for it looks like its European cousin. The name to use is the true one.
Nurserymen have imported a large-flowered red bud from China. Its flowers are not only more showy, but they have a paler, prettier colour—a rosy pink, and lacking the sad, blue tone of the others.
It is easy to raise red bud trees, and they are admirable in the border planting of a garden or lawn. They begin to blossom when quite young, and they never grow so large as to be out of place among shrubbery.
The yellow-wood has larger and lovelier blossom clusters than the black locust, with which it might most easily be confused. In autumn the flower stems hang full of thin pods, one to three seeds in a pod. No other locust is so scantily supplied with seeds in a pod.
In summer the leaflets prove that the tree is not a black locust. They are larger and fewer, though of the same feathered type. In the seasons when the tree blooms freely, which is by no means every year, the twigs are loaded with clusters larger than any black locust produces. In winter it is the bark that distinguishes the tree. It is grey and smooth, like that of the beech; not at all like the dark trunk and rough limbs of the locust. The form of the tree is a regular head of horizontally-spreading limbs, ending in tapering twigs that droop gracefully. It is one of the handsomest trees in winter. The locust is one of the weediest and ugliest of trees when bare.
To find the yellow-wood in its native haunts, we must go to the mountains of Eastern Tennessee and North Carolina. It goes farther north and south, but its range is scant. Better chance of our meeting it in our neighbour’s yard. It is cultivated as a flowering tree by people who appreciate the finest trees that grow wild in American woods. The nurserymen call it Virgilia. This is certainly a graceful name, fitted to a tree that deserves only the best.
The catalpas are pod-bearers of a different type. Their long pencils are green, and there is no sign of splitting until autumn. The seeds are not like those of the flat pods, set in a single row. They are thin as tissue paper, and packed in overlapping layers about the thin partition that divides the pod into two compartments.
The pods hang on after the large, heart-shaped leaves fall. Winter winds bang them against the twigs, and their two sides separate lengthwise. Gradually the thin, two-winged seeds escape, and are scattered. The sowing lasts a long time.