Field horsetail (Equisetum arvense) grows from moist soils. In the spring it generates brown, non-photosynthetic stems whose whole purpose is to release reproductive spores. Once those stems wither, the plant grows its sterile photosynthetic stem to harvest and store energy for the next growing season. The plant fibers are slightly abrasive, and in the past were used to polish pewter and wooden objects. Ironically, field horsetail is toxic to horses and other livestock.

An important subsistence crop, pearl millet is hardy and drought-tolerant. Also known as Cenchrus americanus, it grows well near deserts where the rainfall is low. It has been cultivated in the United States since the 1850s and there are records of this important crop being grown since 2000 B.C.

The king protea is a shrub with a flower that looks like it belongs in a fairy tale. The large, globe-shaped buds resemble giant artichokes before they open. The Latin name *Protea cynaroides* is reminiscent of the Greek sea-god, Proteus, who was known to change shapes, suggesting the diversity found in this unique bloom.

The surface of golden barrel cactus is covered with long, hard, golden-yellow thorns. The plant can grow very large, up to 80 cm in diameter, and is a commonly-used planting material for desert-themed landscaping. Small plants can also be potted for indoor care.

Egyptian starcluster (Pentas lanceolata) is a flowering plant native to Africa and Yemen. Egyptian starcluster is cultivated as an ornamental plant in gardens where it attracts butterflies.

Common bean is one of the most widely produced cash crops in the world, with 23.6 million tons grown in 2016. China is the largest producer of common bean, accounting for 79% of the market share. While common bean is known as a staple food source, the leaves can be used to trap bedbugs and the beans are widely used in a type of fortune-telling called "pharmancy".

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.”

The english oak (*Quercus robur*) is a deciduous tree native to Europe. It is a very long-lived tree; the oldest known specimens have been living for more than a thousand years. It is commonly represented in European mythologies as a symbol of strength, longevity, nobility, morale, and knowledge.

Wishbone flower (Torenia fournieri) is an ornamental flowering plant often found in gardens. Wishbone flower is native to tropical Asia and Africa. Gardeners often grow this species in hanging baskets because it is easy to grow from seeds or from small cuttings.

Royal poinciana (Delonix regia) is also known as the “peacock tree” or the “flamboyant tree.” It’s a Madagascar native and is known for its brilliant crimson or red-yellow flowers. It grows exceedingly fast, reaching its maximum height of around 12 m in a short amount of time.

The apple-ring acacia (Faidherbia albida) is a thorny tree from Africa and the Middle East. A versatile species, it can grow in dry floodplains, swamps, riverbanks, and across savannahs. The ring-shaped seed pods are favorites of livestock and wildlife alike. The apple-ring acacia's wood is used as firewood and to make canoes, and soap can be made from the ashes.

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.

The octopus tree is a large evergreen tree known for its distinctive drooping leaves. These leaves have earned it the nicknames "octopus tree" and "Australian umbrella tree." It is native to the Queensland area of Australia. Its root system is aggressive, however, so it can become invasive and choke out other species.

English ivy is the most common climber of European forests. It is a perennial woody vine with evergreen, dark, shiny lobed leaves. It utilizes aerial rootlets to attach to the tree bark with exceptional strength, helping the english ivy creep more than 15 m up a tree. Hedera helix also grows as a forest groundcover and is invasive outside its native range.

The california poppy is native to the United States and Mexico and is the state flower of California since 1903. April 6 is considered to be California Poppy Day and is a common sight on-road and landmark signs in California.

Aloe vera is an evergreen succulent species native to the Arabian Peninsula. The thick leaves are filled with gooey flesh that stores water for survival in its native desert territories. Aloe vera has become a popular houseplant and is also incorporated into a wide range of cosmetics and skin-care products.

The common bushweed (*Flueggea virosa*) is a bushy shrub that produces white, waxy fruits favored by animals and birds. Native to Southern Africa on woodland margins and riverbanks, it has also become naturalized in Hawaii and parts of China, where it is invasive and disruptive to local ecosystems. Common bushweed branches are regularly used to create handmade fish traps.

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.

Native to North America, eastern black nightshade is attractive but poisonous. Like many Solanum ptychanthum plants, all green portions of the plant contain the solanum alkaloid, which is highly toxic. Eastern black nightshade is shade-tolerant, so it can often be found growing in the shadow of crops. Bees and some beetles feed on the plant, but most other wildlife avoids it.

Philadelphus coronarius, commonly known as sweet mock-orange, is a popular ornamental plant known for the lavish, sweet smell of its gentle flowers. Sweet mock-orange is a deciduous, dense shrub commonly found in Mediterranean woodlands and scrubs.