This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
An ornamental foliage plant, from tropical America, with large deep-green leaves having the mid-rib and main veins bright yellow. Flowers tubular, yellow. Requires loamy soil, and is raised from cuttings.