Cassava (Manihot esculenta) comes from South America but has become a major source of carbohydrates for many peoples around the world. This is especially true in low-income areas since it is cheap to grow. Only when properly cooked the starchy root of it is edible. The rest of the plant is poisonous if eaten. Cassava's natural starches are also useful in laundry products, and it is under investigation as a source of biofuel as well.

The golden pothos (Epipremnum aureum) is a popular houseplant that is commonly seen in Australia, Asia, and the West Indies. It goes by many nicknames, including "devil's ivy", because it is so hard to kill and can even grow in low light conditions. Golden pothos has poisonous sap, so it should be kept away from pets and children.

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.

Mexican tea (Dysphania ambrosioides) is native to tropical parts of the Americas. Both the leaves and stems have tiny glands that give off a bad-smelling odor. It’s a weed that grows along the sides of roads and stream beds.

Lemon-scented gum (*Corymbia citriodora*) is a very tall species of tree native to northern and eastern Australia. The essential oil produced from the plant is enjoyed for its scent and is also incorporated into insect repellents. King's Park in Perth, Australia features perhaps the most famous stand of lemon-scented gum trees.

While most assume that the sweet potato vine is a potato, it is not considered nightshade. However, sweet potatoes and potatoes both belong to the order of Solanales. Its culinary use is wide and can be fried, baked or boiled.

This aggressive weed spreads across grasslands and fields via underground roots that creep horizontally, some for more than 5 m. It can cause major problems to agriculture if its growth is left unchecked. Its seeds feed many birds as well as pest insects. Creeping thistle is generally considered a noxious weed even in its native territory.

Parlor palm (Chamaedorea elegans) is a palm tree native to Mexico and Guatemala which grows in rainforest environments. Parlor palm is widely cultivated as a houseplant and grows well in light soil out of direct sunlight.

Shining bird of paradise (Heliconia metallica) is an evergreen soft-wooded perennial named for its large, exotic flowers that resemble a bird’s beak. Blooms from spring into summer. Requires rich, moist soil and should not be allowed to dry out between watering. Grows best in full sun or bright light.

Toothed spurge (Euphorbia dentata) has jagged leaves with toothed edges which explains both its common and Latin names (dentata means "toothed"). This spurge is a first-growth species that occupies disturbed land like roadsides and waste ground. The plant is classed as a noxious weed in some US states.

Male fern thrives in part to full shade, which makes it a nice choice for understandings, or areas that don't get enough sun for other plants to thrive. This graceful plant grows in clumps, will return year after year, and is resistant to rabbits.

The common zinnia is a popular garden plant that has usually been hybridized from different wild varieties. It thrives in relatively dry conditions with good airflow and comes in many colors.

Common morning glory natives in Mexico and Central America and is commonly planted as an ornamental plant prized for its colorful trumpet-shaped flowers. It is naturalized in temperate and subtropical areas globally and in many places, always grown weedy and is considered to be invasive in many parts of the world.

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.

Corn plant (Dracaena fragrans) is an evergreen, slow-growing perennial shrub native to tropical Africa. Also, it is a classic houseplant, grown in Europe since the 1800s. Its glossy green foliage that resembles corn leaves grow on top of a thick cane, which is why the plant is sometimes called “false palm tree.”

Dusty miller (Jacobaea maritima subsp. maritima) is an evergreen perennial plant native to the Mediterranean region. Another common name for dusty miller is silver ragwort. Dusty miller is widely used in ornamental horticulture because of its pleasing silvery look and texture.

Prickly lettuce, in spite of its appearance, is the closest wild relative of cultivated lettuce. Even though it is widely considered a weed, it can be used in the kitchen. Young leaves of prickly lettuce are edible and the bitter milky latex can also be made into a condiment or to add flavor to salads. Consuming in large quantities could cause digestive upsets.

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.

Apple of Sodom, or Calotropis procera, is an extremely poisonous plant. The fruit of this plant ripens and bursts, causing the seeds to scatter. In Jamaica, the fibers inside of the fruit are collected and used to stuff pillows.

Mexican petunia (Ruellia simplex) is an evergreen herbaceous perennial recognized by its wrinkly, trumpet-shaped purple flowers. It is commonly cultivated as an ornamental plant. Due to its vigorous spreading ability, Ruellia simplex has become widely naturalized outside Mexico. It is considered an invasive species in many countries.