Ground ivy (Glechoma hederacea) is a perennial evergreen trailing plant, often found in grasslands and woodlands. Saxon peoples once spread the plant, but it has become invasive in some parts of the world now. The fast-growing ground ivy can be toxic to horses but generally cannot harm other animals or humans.

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.

Greater celandine (Chelidonium majus) is a plant species with distinctive golden-yellow flowers. It has been cultivated since the era of Pliny the Elder, in the first century. The greater celandine is actually a part of the poppy family, and like other species in that genetic family, it is well known for its recognizable, bright blooms. The yellow latex inside is equally recognizable, but is highly toxic if consumed.

The zanzibar gem is a flowering green plant native to eastern Africa. It also gets the name emerald palm because of its bright, glossy color. Today, the zanzibar gem (Zamioculcas zamiifolia) is grown around the world as a houseplant, in part because it is easy to grow and care for. Though this plant is mildly toxic if ingested, its danger level is often overstated.

The cypress spurge is an ornamental plant native to Europe. Because of its strong tendency to overrun the habitats of other species, this plant is classified as a noxious weed in various states, including Colorado. Although this plant attracts bees and other pollinators, some sections of it are hazardous and contain irritants.

The common daisy produces iconic flowers that are seen in European and American folklore dating back centuries. It is often a representation of childlike innocence. The plant is edible and can be used in small quantities in salads, sandwiches, soups, or tea. However, it can also become toxic and cause digestive problems if eaten in quantity.

Common bugle is a mat-forming, dense plant that features blue flowers and shiny, dark green leaves. Although it works extremely well for a ground cover that will choke out weeds and provide a colorful display, common bugle does not tolerate much foot traffic. Take care to plant it in a location that is away from paths.

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.

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.

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.”

White clover (Trifolium repens) is a perennial herb, one of the most cultivated species of clover. It can be found on lawns and grasslands all over the world. White clover is often cultivated as a forage plant and used for green manure in agriculture.

Madagascar dragon tree (Dracaena reflexa var. angustifolia) is an evergreen tree often cultivated as an ornamental or houseplant. It is no wonder why madagascar dragon tree is one of the most popular houseplants - its richly colored, olive-green leaves and thick stems are very aesthetic. Aside from the attractive looks, madagascar dragon tree is said to have good air-purifying qualities (as many indoor plants).

Common selfheal (Prunella vulgaris) is a flowering herb found in temperate habitats. It grows along roadsides, wastelands, and is also often planted in gardens. Young common selfheal leaves can be used as salad constituents or cooked in soups and stews. It is best to wash the bitter tannin off the leaves before eating them. An olive-colored dye can be made using the stems.

Germander speedwell (*Veronica chamaedrys*) is also known as cat’s eyes because the center of each flower resembles the iridescent eye of a cat. This herbaceous perennial is a hardy weed that invades lawns and turf. The pretty blue flowers of the germander speedwell wilt quickly when picked. Nevertheless, it was once considered good luck for travelers to wear them on their coats.

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.

Common tansy (Tanacetum vulgare) is a plant native to Europe and Asia. The common tansy has been introduced in other global regions and is sometimes considered to be an invasive species. The common tansy can be used as a substitute for sage.

The garden croton is a showy tropical display that does well indoors or in warm climates. Known for its attractive foliage, this plant can have both color and structural variations in its leaves. Leaf colors can include orange, yellow, scarlet, white, and green, and many times all are present on one plant.

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.

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.

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.