Wheat (Triticum aestivum) is a grass species that is commercially grown for cereal grain. Approximately 95% of all wheat grown in the world is this species, Triticum aestivum. It has proved well adapted to modern industrial baking, and has replaced many of the other wheat, barley, and rye species.

Three-inch goat's-face grass (Aegilops triuncialis) is classified as invasive in North America because it poses a threat to native species. Cattle don't eat Barbed goat grass, and the spiked barbs for which it is named make it a truly unpleasant invader. Livestock can be injured when this coarse grass enters their eyes and mouths.

Common sainfoin (Onobrychis viciifolia) is an erect, perennial, herbaceous legume that blooms in spring and in fall. Clusters of spiked blossoms bloom along a stem. Striped pink flowers attract a variety of bees. Seed pods form and have small spikes that cling to animal fur and help to propagate the plants in new locations.

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".

Henbane is a poisonous annual or biennial plant that is native to the Mediterranean. The plant is entirely covered with greasy hairs. Its seeds spread from mid-spring to early fall.

Jerusalem artichoke is a North American native sunflower with large amber flower heads, broad leaves, and sturdy branches. Its tubers are a highly nutritious vegetable food crop that tastes sweet and nutty. The plant's Latin name, Helianthus tuberosus, stems from helios, the Greek word for sun, and anthos, meaning flower.

The pot marigold is a herbaceous perennial plant often recognized by its thick, orange-yellow blooms with numerous petals. Flowers of the pot marigold have a long history of table use. They are often served in salads or as a decoration. The flowers can also be made into a similarly-colored dye for foods, textiles, or cosmetic products.

Fernleaf yarrow is often cultivated as an ornamental plant in temperate regions, and several cultivars have earned the Royal Horticultural Society’s Award of Garden Merit. Achillea filipendulina’s genus name is a reference to the legendary Greek hero Achilles.

The species known as bittersweet is a semi-woody vine found in forests, marshes, shrublands, and hedgerows. All parts of the plant contain alkaloids (especially the bright red berries), which are extremely poisonous to humans and livestock if ingested. In spite of its toxicity, bittersweet was hung as a talisman in the past to ward off witchcraft.

The common sunflower is recognizable for its bright flower on a very tall stem. It is often grown in gardens. These flowers have been important in culture: they were worshipped by the ancient Inca people, and today, they represent eco-friendly movements. The artist Vincent van Gogh made a famous series of paintings about common sunflower. Wild versions of the plant branch out to many flower heads, but domesticated plants typically only have one.

Four o'clock flower (Mirabilis jalapa), also known as the marvel of Peru, is a perennial, herbaceous, bushy plant with fragrant, showy flowers, commonly cultivated for ornamental purposes. During bloom time, its flowers are closed most of the day; they open between four and eight o'clock, hence the common name four o'clock flower.

The corn poppy (Papaver rhoeas) is an annual flower that carries great symbolism in many cultures. During World War One, the corn poppy could be found blooming between trenches in France and Belgium; afterwards, it became an international symbol of fallen soldiers. This poppy does not produce opium.

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 horse Chestnut was the tree that Anne Frank mentioned in her diary. While the original tree fell down in 2010, there have been new trees planted around the world from the original seeds. Horse Chestnut 's seeds resemble chestnuts, but they are inedible and toxic.

While the tree of heaven has a lovely name, it has a bad reputation in many areas of the US. Several states consider it an invasive species because of its aggressive growth, rapid reproduction, and ability to thrive in poor conditions. The root system of this tree routinely damages sidewalks, sewer systems and other structures.

Common hollyhock (Alcea rosea) is a stalk-flowering plant known for its height and attractive flowers. It regularly reaches head height or beyond - from 1.5 to 2.5 m tall. The presence of common hollyhock in a garden can also attract butterflies and hummingbirds.

The english walnut is a large deciduous tree. There are many superstitious beliefs tied to it, one of which originates from the island of Skopelos: people believe that the planter of a walnut tree will die once the english walnut grows tall enough to see the sea.

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.

Purple loosestrife (Lythrum salicaria) is found in Eurasia, Africa, and Australia. It attracts bees and butterflies as well as the loosestrife beetle which specifically targets the leaves of this plant. In some regions, the fast-growing purple loosestrife has become an invasive species that can outcompete native species.

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'.