Poinsettia flower Dec 12, 2024

Here"s the red poinsettia, one of the plants known for its striking star-shaped leaves. The poinsettia has become a symbol of Christmas cheer, brightening homes and public spaces across North America. Fun fact: Joel Roberts Poinsett, the first US ambassador to Mexico, introduced these vibrant plants to America in the 1820s after discovering them while exploring the Taxco region in Guerrero. The small yellow structures found at the centre of the vibrant bracts are the actual blooms. These flowers, grouped within cyathia, are crucial to the plant"s reproductive process. Interestingly, the hues of poinsettia bracts result from photoperiodism, a light-sensitive process crucial for their colour transformation.

© David Hosking/NPL/Minden Pictures

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