Poinsettia seedling to branch, resulting in a bushier plant. In the late 1980s, university researcher John Dole discovered the method previously known only to the Eckes and published it, allowing competitors to flourish, particularly those using low-cost labor in Latin America. The Ecke family's business, now led by Paul Ecke III, decided to stop producing plants in the U.S., but as of 2008, they still serve about 70 percent of the domestic market and 50 percent of the worldwide market. The poinsettia has been cultivated in Egypt since the 1860s, when it was brought from Mexico during the Egyptian campaign. It
Plant development forms is referred to as 'vegetative phase change', but there is some disagreement about terminology. Plant structures, including, roots, buds, and shoots, that develop in unusual locations are called "adventitious". Such structures are common in vascular plants. Adventitious roots and buds usually develop near the existing vascular tissues so they can connect to the xylem and phloem. However, the exact location varies greatly. In young stems, adventitious roots often form from parenchyma between the vascular bundles. In stems with secondary growth, adventitious roots often originate in phloem parenchyma near the vascular cambium. In stem cuttings, adventitious roots sometimes also originate