Lotus, a latinization of Greek lōtos (λωτός), is a genus of flowering plants that includes most bird's-foot trefoils (also known as bacon-and-eggs) and deervetches. Depending on the taxonomic authority, roughly between 70 and 150 species are accepted, all legumes; American species formerly placed in the genus have been transferred to other genera. Lotus species are found in the Eastern Hemisphere and adapted to a wide range of habitats.

The aquatic plant commonly known as the Indian or sacred lotus is Nelumbo nucifera, a species not closely related to Lotus.

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