Antirrhinum is a genus of plants that used to be the family Scrophulariaceae, more commonly known as snapdragons from the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when properly squeezed (thus the 'snap').

While Antirrhinum majus is the plant that is usually meant if the word "snapdragon" is used on its own, many other species in the genus, and in the family Scrophulariaceae more widely, have common names that include the word "snapdragon".

Snapdragons are annual plants and do best in full or partial sun. They are available in a range of heights: dwarf (6-8 inches), medium (15-30 inches) and tall (30-48 inches). Plant them in a soil that drains well to prevent the roots from rotting.

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