Marijuana (Cannabis sativa) has a very long history of cultivation for various purposes. Marijuana can be used for manufacturing industrial fiber, hemp oil, and food (seeds) in medicine and pharmacy as a recreational drug, and as an entheogen among other applications. Each plant is either male or female, with only the females producing useful amounts of oil.

Cowpea (Vigna unguiculata) is an annual grain legume that is an important crop in many regions. The plant has been used as forage for animals and for cow feed. It can be short and bushy or grow as a long vine up to 2 m tall. The edible seeds and seed pods are very small and kidney-shaped.

The pepper are commonly used for cooking in places such as the Southern U.S. and Central America. Most are moderately spicy, though because there are so many variants, the spice level can vary dramatically. Cayenne powder is also a popular seasoning product made from pepper plants.

An important food crop in some areas, zombi pea, or Vigna vexillata, is a perennial climbing plant that thrives in a variety of conditions. In addition to being cultivated for its tubers, it is also grown as a ground cover and green manure.

Looking like a miniature fairy tale tree, jade plant is one of the world's most popular succulents. Native to southern regions of Africa, Crassula ovata is well adapted to the dry warm air of modern homes. It grows slowly but lives for so long that plants get passed from generation to generation. It is toxic to dogs, cats, and horses, and even mildly toxic to humans.

Solanum lycopersicum is an annual or perennial herbaceous vine native to Central and South America that produces a large, juicy, edible fruit known as tomato. Today there are over 10000 cultivated varieties. Although tomato is the world’s most popular vegetable, botanically it is a fruit.

Golden dewdrops (Duranta erecta) is an ornamental sprawling shrub commonly found in subtropical and tropical gardens all over the world. Its gentle purple blossoms are often visited by butterflies and hummingbirds. Golden dewdrops is considered a weed in Australia, South Africa and certain parts of East Asia.

Elephant bush (*Portulacaria afra*) is a succulent native to South Africa, easily recognized by its small, rounded green leaves and crimson stems. This cute semi-evergreen succulent is cultivated as an ornamental, most commonly in escaping, and as a bonsai plant.

The calla lily is a well-known ornamental plant with several cultivars receiving the Royal Horticultural Society's Award of Garden Merit. The most calla lily cultivars include 'Crowborough', 'Green Goddess', 'Pink Mist', and 'Red Desire'. They are popular as a cut flower or a rhizomatous herb in warm gardens.

The peace lily gets its scientific name Spathiphyllum wallisii from a combination of the two Greek words ‘spath’ and ‘phyl’, which means spoon and leaves, respectively. The large graceful white spathe of the peace lily resembles a white flag, which is an international symbol of truce or peace.

Florist kalanchoe (Kalanchoe blossfeldiana) originates from Madagascar and has been a popular houseplant since the 1930s. Unlike most other succulents that are grown for their interesting leaves, Kalanchoe blossfeldiana is valued for the colorful flowerheads it produces in autumn and winter. This is the reason it is commonly gifted during holidays, earning it another name - Christmas kalanchoe. It is toxic to pets.

Originating from South America, Philodendron bipinnatifidum is commonly cultivated for landscaping in warm and tropical environments, including Florida, California, South Africa, New Zealand, and Australia. Selloum sap causes skin discomfort and chewing or ingesting can result in decreased respiratory functionality.

Persea americana, widely known as the avocado plant, is an evergreen tree (semi-deciduous in cooler climates) that is native to Central America. It is cultivated all over the world for its nutritious fruits. Avocado has become an important plant in many cuisines due to its high nutrient and fat content, creamy texture, and distinct taste.

Bear's breech (Acanthus mollis) is a perennial plant native to the Mediterranean region of Europe from Portugal to North Africa. Bear's breech grows commonly in the wild and is often used as a garden plant. The acanthus leaves of this plant are seen throughout history in sculptures, columns, and furniture.

The bush lily is a flowering green plant that grows best in woodland environments. It is native to South Africa. It gives off a fragrant scent, but is toxic and poisonous if eaten. In the wild, bush lily plants tend to grow together in clumps.

Flamingo flower (Anthurium andraeanum) is an ornamental perennial plant, famous for its pink or bright red heart-shaped flowers with very prominent pistils. Aside from its decorative attributes, flamingo flower is said to have excellent air-purifying properties.

African marigold is a common garden plant with bright orange or red flowers. Its use in decorative and ceremonial gardens dates back to ancient Aztec civilizations. Not only does african marigold add bright colors, but it is also known to repel insects, rabbits, and deer thanks to its toxic latex.

Olive (Olea europaea) is an evergreen tree or shrub with great agricultural importance, especially in the Mediterranean. Its fruits are edible and widely used for making oil. Olive has acquired quite a few symbolic meanings during its long history of cultivation. The most popular symbol would probably be the olive branch, which represents peace and glory.

Despite its name, heavenly bamboo is not actually bamboo at all but a semi-evergreen shrub. It gains its name because a casual observer may mistake it for actual bamboo. The bright red berries are a key distinguishing feature of this plant. They should be avoided, however, since they are toxic to most animals and humans alike.

The swiss cheese plant (Monstera deliciosa) produces bright, glossy leaves and makes a popular houseplant. It is originally native to tropical forest regions in Central America. The nickname swiss cheese plant refers to the small holes that develop in the plant's leaves. The long fruits resemble corncobs and smell sweet and fragrant when ripe.