While native to North America, the annual fleabane has been introduced to other places around the world, as well as in 43 states of the United States. It is a popular choice for bees, flies, wasps, and butterflies as a source of nectar, but is invasive and is threatening the native ecosystem where they grow.

Himalayan balsam (Impatiens glandulifera) is a flowering annual plant found natively in the Himalayan mountains. It is an attractive ornamental plant but has become an invasive species in North America due to humans transiting. In order to remove the invasive species, the plant must be cut out by its roots.

Oregano (Origanum vulgare) is a herbaceous perennial plant closely related to marjoram. Ancient Greeks and Romans considered it a symbol of happiness. It is one of the most popular spice herbs, used in various cuisines all over the world. Oregano oil can be derived from the plant as well. Unfortunately, legal action has been required to stop suppliers of the oil from falsely claiming unproven health benefits.

The bigleaf hydrangea is a deciduous shrub native to Japan, and is known for its lush, oval, colorful inflorescence. The two types of Hydrangea macrophylla are mopheads - with large, ball-shaped, sterile flower clusters, and lace capes - with small round fertile flowers in the center, and sterile flowers on the outer side of each inflorescence. Depending on soil pH, blooms can change color from pink to blue.

European beech (Fagus sylvatica) is a large deciduous tree often used for ornamental purposes. European beech tends to out-compete other tree species, due to its dense canopy and tolerance to shade. Its wood is highly valued and has a very diverse use, including making furniture, musical instruments, for construction, as firewood, charcoal, and plywood.

The common dogwood tree contains some of the toughest wood of any tree. As a result, it is said that the cross used to crucify Jesus Christ was built from this. The pollen in the blossoms of this plant attracts butterflies, and the berries attract birds. It is typically planted as an aesthetic plant and is utilized for borders, hedges, or screens.

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.

Buddleja davidii, commonly known as butterfly bush, is a fast-growing shrub native to East Asia. This vigorous plant is usually cultivated as an ornamental, due to its extravagant purple inflorescences. It carries the name butterfly bush because its flowers are a valuable source of nutritious nectar for numerous butterfly species.

Sycamore (Acer pseudoplatanus) is a tree native to Europe and Asia. Sycamore is tolerant of wind and coastal exposure. This species is known as the sycamore maple in the United States. Sycamore wood is commercially used to make musical instruments, furniture, joinery, wood flooring and kitchen utensils.

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.

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.

Common hazel (Corylus avellana) is a deciduous shrub species that is cultivated for its edible nuts. Hazelnuts can refer to the nut from any Corylus species, but it most often refers to Corylus avellana. The nuts from common hazel are eaten straight or used in making confectionary. Common hazel is native to Europe and western Asia.

European ash (Fraxinus excelsior) is a large deciduous tree featured in Norse mythology and Scottish folklore. European ash is native to mainland Europe. This species is susceptible to the disease Ash dieback which is caused by the fungus Hymenoscyphus fraxineus. European ash often grows in basic soils on calcareous substrates.

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.

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.

Red clover is widely cultivated as a fodder plant and green manure because its roots can fix nitrogen and increase the fertility of the soil. The cultivated Trifolium pratense is inevitably escaped and is now naturalized globally, including the United States and Australia. Its flowers are attractive, so it is also cultivated as an ornamental plant.

Giant goldenrod (Solidago gigantea) is an herb in the sunflower family. It is widespread in the central and eastern United States and Mexico. Giant goldenrod is found in a variety of natural habitats and nature landscaping cultivation throughout the United States and grows in moderately moist soils. It is the state flower in Kentucky and Nebraska.

Ribwort plantain grows in a number of different habitats as long as it has enough sunlight. Its leaves have characteristic parallel veins that make it easy to identify. The heads of ribwort plantains get popped off in some common British children's games. Its seeds are critical food sources for songbirds, and its leaves are eaten by rabbits and deer.

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.

Common yarrow is a wildflower that has feathery leaves and flowers in white, yellow or pink. In China, the plant is considered to be good luck while for some time in Scotland it was believed to have magical properties. It has been brewed into beer, tea, and liquors, but it has low toxicity. Do not consume in large quantities. Common yarrow's bitter leaves are toxic to pets and horses. Other livestock can eat it, though it gives cow milk an unpleasant flavor.