US official Joel Roberts Poinsett spotted the plant in Mexico 200 years ago, popularized it in the US
(Newser) -
Like Christmas trees, Santa, and reindeer, the poinsettia has long been a ubiquitous symbol of the holiday season in the US and Europe. But now, nearly 200 years after the plant with the bright crimson leaves was introduced north of the Rio Grande, attention is once again turning to the...