The Black Maple
A. nigrum, Michx.
The black maple is so like the sugar maple that they are easily confused, but its stout branchlets are orange-colored, the leaves are smooth and green on both sides, scantly toothed, and they droop as if their stems were too weak to hold up the blades. The keys spread more widely than those of the sugar maple.
The black maple is the sugar maple of South Dakota and Iowa. It becomes rarer as one goes east. It is an admirable lumber tree, as well as a noble street and shade tree.
Two soft maples are found in the eastern part of the country, their sap less sweet, their wood softer than the hard maples, and their fitness for street planting correspondingly less.
The Red Maple
A. rubrum, Linn.
The red maple is a lover of swamps. It thrives, however, on hillsides, if the soil be moist; and is planted widely in parks and along village streets. In beauty it excels all other maples. In early spring its swelling buds glow like garnets on the brown twigs (see illustrations, [pages 198-199]). The opening flowers have red petals, and the first leaves, which accompany the early bloom, are red. In May the dainty flat keys, in clusters on their long, flexible stems, are as red as a cock's comb, and beautiful against the bright green of the new foliage. In early September in New England, a splash of red in the woods, across a swamp, is sure to be a scarlet maple that suddenly declares its name. Against the green of a hemlock forest these maples show their color like a splash of blood. The tree is gorgeous.
In winter the lover of the woods, re-visiting the scenes of his summer rambles, knows the scarlet maple by the knotty, full-budded twigs which gleam like red-hot needles set with coral beads, against the clean-limbed, gray-trunked tree. The red maple never quite forgets its name.
As a street tree, it makes rapid progress when it once becomes established, though it is apt to stand still for a time after being transplanted. Its branches are short, numerous, and erect, making a round head, admirably adapted to the resistance of heavy winds. It is particularly suited to use in narrow streets.