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.

Largeleaf pennywort (Hydrocotyle bonariensis) is a creeping perennial plant that grows in sandy soils near coastlines, estuaries, and dunes. Largeleaf pennywort is native to Africa. It has also been found growing in high diversity areas of Colombia.

Wandering Jew has been introduced to North America where it is considered a noxious weed. It can be highly invasive - spreading across crops and pastures, outcompeting more desirable plants.

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.

Alfalfa (Medicago sativa) is a perennial flowering plant in the legume family of Fabaceae. The common name alfalfa is mainly used in North America. In the rest of the world, this crop is called "lucerne." This plant looks similar to clover due to its purple flowers.

The madagascar periwinkle (Catharanthus roseus) is an evergreen subshrub or herbaceous plant. It has a long history of cultivation. Over the years, many cultivars have been developed, most commonly with the aim of incorporating new colors or making the plant more tolerant to cold.

The wild carrot is a common flowering plant with light, delicate flowers. Originally native to Europe and Asia, it has also spread to North America and Australia. Studies of historical paintings suggest that the wild carrot was cultivated in Turkey, Spain, and North Africa for centuries.

The garden dahlia is a common spring flower that comes in a wide range of colors. The flowers themselves are unscented and attract pollinators, like bees, using only their bright coloration. Dahlia pinnata plants were grown by ancient Aztecs, and it is now the official flower of Mexico. It is genetically related to garden plants like sunflowers and zinnias.

Giant ragweed, a native plant to North America, is an allergy sufferer's nightmare. It causes dramatic allergic reactions in more than 23 million Americans annually. In spite of this, the wildflower is edible, and evidence suggests that Native Americans actually planted it as a crop and harvested the seeds for their oil. Giant ragweed can be invasive, however, and out-competes many native species. Modern horticulture practices recommend against planting it.

The indian jointvetch is unique because its true native origin is unclear. The plant is also called Aeschynomene indica and can be found in parts of Africa, Asia, Australia and the southeastern United States. This plant is toxic and cannot be eaten by animals. Instead, it can be transformed into pesticides or gunpowder.

Coffee senna (*Senna occidentalis*) is a perennial shrub that prefers warm and humid environments. It is sometimes considered an invasive weed that grows in open woodlands, waste areas, and roadsides. It blooms in spring with yellow flowers, followed by brown fruit in late summer and early fall. Seeds can be used as a coffee substitute, although it does not contain caffeine.

African blood lily (Scadoxus multiflorus) is a plant species native to Africa. African blood lily is also called the “African Blood Lily,” “Ball Lily,” “Low Lily,” “Monsoon Lily,” and “Powderpuff Lily.”

Dwarf umbrella tree (*Schefflera arboricola*) is an evergreen, multi-stemmed shrub native to China. It is commonly grown as a houseplant or a garden plant in milder climates for its decorative palmate compound leaves. The leaves contain calcium oxalates, which can damage internal organs when ingested. It shouldn't be confused with the Australian umbrella tree, *Schefflera actinophylla*.

Eggplant (*Solanum melongena*) is a plant species related to nightshade and native to India. Eggplant is grown worldwide for its edible purple fruit. The spongy and absorbent fruit is a staple in Eastern cuisines. This plant is known as "brinjal" in South Africa and Asia, while the British call it 'aubergine'.

Taro (Colocasia esculenta) is a tropical plant native to southern India and Southeast Asia. It is most commonly grown as a root vegetable and has a wide variety of culinary uses. Taro is considered one of the most ancient crops in history.

Tepary Bean (Phaseolus acutifolius) is an annual bean plant native to the United States and Mexico and can produce fruit even in arid, drought-level conditions. In folklore, some native tribes believe that the Milky Way at night is actually made up of tepary Beans in the sky! It is an incredibly well-behaved bean that is very easy to grow.

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.

Physalis angulata is an annual plant belonging to the nightshade family Solanaceae. It has dark green leaves that are roughly oval, and often have tooth shapes around the edge. The flowers are a pale yellow and the yellow-orange fruits are wrapped inside a balloon-like calyx, which is toxic and should not be eaten.

Ivyleaf morning-glory is a Central American flowering vine. It has hairy leaves and lavender, white, and rose-colored trumpet-shaped flowers. It also bears egg-shaped fruits. This species flourishes in places with tropical climates. It grows well on railroads, abandoned sites, and landfills.

Parthenium hysterophorus or santa Maria feverfew is also called famine weed. It is an invasive weed that can disrupt the health of crops, pasture, livestock, and humans. A substance in the plant, called parthenin, is highly toxic and can cause dermatitis and breathing difficulties in humans and animals.