The Lotus is a genus of herbaceous plant belonging to the family Fabacee (or Legumionous) that includes over a hundred species. The species of the genus Lotus are almost all perennial herbs.They typically have trifoliate compound leaves that have two large stipules at the basis; this conveys the impression of leaves composed of five leaflets instead of three, as it actually is. Some species, however, really have leaves composed of more than three leaflets (imparipinnate), up to about fifteen. The flowers, irregular, with the typical papilionaceous corolla, are almost always yellow but they can have red shades. They are collected in small inflorescences made up of 3-10 flowers. The fruit is a legume.