Poinsettia found in the center of each leaf bunch, and are called cyathia. The poinsettia is native to Mexico. It is found in the wild in deciduous tropical forests at moderate elevations from southern Sinaloa down the entire Pacific coast of Mexico to Chiapas and Guatemala. It is also found in the interior in the hot, seasonally dry forests of Guerrero, Oaxaca, and Chiapas. Reports of "E. pulcherrima" growing in the wild in Nicaragua and Costa Rica have yet to be confirmed by botanists. The Aztecs used the plant to produce red dye and as an antipyretic medication. In Nahuatl, the
Euphorbia heterophylla Euphorbia heterophylla Euphorbia heterophylla, also known under the common names of (Mexican) fireplant, painted euphorbia, Japanese poinsettia, desert poinsettia, wild poinsettia, fire on the mountain, paintedleaf, painted spurge, milkweed, and kaliko plant, is a plant belonging to the Euphorbiaceae or spurge family. Euphorbia heterophylla is native to tropical and subtropical America but is now widespread throughout the tropics. Many herbicides fail to control it and hence it has spread rapidly in many parts of the world. This plant has been introduced to South and Southeast Asia as an Ornamental plant, having become a weed in India and Thailand, where it