This section is from the book "Commercial Gardening Vol4", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
An ornamental North American tree or shrub, 10-15 ft. high, with trifoliate leaves, and clusters of small greenish-white flowers followed by winged hop-like seed pods. The variety aurea has golden young foliage. Loamy soil. Raised from seeds, layers, or cuttings.