Rocket, eruca, or arugula is an edible annual plant in the family Brassicaceae used as a leaf vegetable for its fresh, tart, bitter, and peppery flavor. Its other common names include garden rocket, as well as colewort, roquette, ruchetta, rucola, rucoli, and rugula.
Eruca vesicaria
Leaves
Seed pods
Inflorescence and young fruits of arugula or rucola
Brassicaceae or Cruciferae is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, while some are shrubs. The leaves are simple, lack stipules, and appear alternately on stems or in rosettes. The inflorescences are terminal and lack bracts. The flowers have four free sepals, four free alternating petals, two shorter free stamens and four longer free stamens. The fruit has seeds in rows, divided by a thin wall.
Brassicaceae
Ricotia lunaria
Typical floral diagram of a Brassicaceae (Erysimum "Bowles' Mauve")
Lunaria annua with dry walls of the fruit