Euphorbia subg. Poinsettia Euphorbia subg. Poinsettia Euphorbia" subg. "Poinsettia is a subgenus deriving from the genus "Euphorbia", and is endemic to North America. <nowiki> </nowiki>It contains around 24 species, of which the best known is "E. pulcherrima", the poinsettia. This species grows wild in the mountains on the Pacific slope of Mexico, and despite many legends, no one is quite sure from which wild populations the cultivated varieties derive. This taxon was first published at genus rank under the name Poinsettia by Robert Graham in 1836. It was demoted to a section of "Euphorbia" as E." sect. "Poinsettia by Henri Ernest Baillon in
The Plant List The Plant List The Plant List is a list of botanical names of species of plants created by the Royal Botanic Gardens, Kew and the Missouri Botanical Garden and launched in 2010. It was intended to be a comprehensive record of all known names of plant species over time. There is a complementary project called the International Plant Names Index, in which Kew is also involved. The IPNI aims to provide details of publication and does not aim to determine which are accepted species names. Newly published names are automatically added from IPNI to the World Checklist of Selected Plant