LEGUMES

Legumes produce their fruit as a pod and generally possess nitrogen-fixing bacteria in nodules on their roots. Because of those bacteria, legumes increase soil's nitrogen content. Some examples of legumes are soybeans, peas and alfalfa.
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Senna

Senna, a laxative made from the leaves of certain species of cassia plants. The chief sources are the Alexandria senna, native to Egypt, and the Tinnevelly senna, native to Arabia but widely grown in India.

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  • Senna

    Senna

    Senna, a laxative made from the leaves of certain species of cassia plants. The chief sources are the Alexandria senna, native to Egypt, and the Tinnevelly senna, native to Arabia but widely grown in India. See more »

  • Sensitive Plant

    Sensitive Plant

    Sensitive Plant, a perennial plant native to Brazil. It is a hairy plant with leaves made up of many individual oval leaflets. See more »

  • Sweet Pea

    Sweet Pea

    Sweet Pea, an annual plant grown for its fragrant, colorful blossoms. It is native to Italy and has been cultivated for almost 300 years. See more »

  • Tamarind

    Tamarind

    Tamarind, an evergreen tree found in almost all tropical regions of the world. In the United States, it is grown only in southern Florida, primarily as a shade tree. See more »

  • Trefoil

    Trefoil

    Trefoil, the name given to several members of the pea family that have leaves divided into three parts. See more »

  • Vetch

    Vetch

    Vetch, a group of herbs in the pea family, native mainly to north temperate areas. See more »

  • Wisteria

    Wisteria

    Wisteria, or Wistaria, a woody, climbing vine grown for its showy flower clusters. See more »

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