Poinsettia (Euphorbia pulcherrima)

NASA Certified
Air Purification Rating
Competent at removing chemical vapours. 
Poinsettia is one of the most common indoor flowering plants and it is strongly associated with the Christmas season.
The Poinsettia has very attractive leaves which are green when they emerge and change to red, white, pink or marbled depending upon the species.
The plant was first discovered in southern Mexico and introduced as a houseplant by Joel Poinsett in 1830. 
Euphorbiaceae (spurge)
Southern Mexico
Care and Maintenance
Water thoroughly when the top layer of soil is dry. A Poinsettia's rest period is from spring to mid-summer - water less during this period.
Use all purpose potting mix.
Light Conditions
Day: 18-21 degrees celsius
Night: 10-18 degrees celsius
Pests and Problems
Very occasionally white flies. Root rot if overwatered.