Yellow sweet clover is a nitrogen-fixing legume often used in pastures. Yellow flowers attract pollinators, while the seeds make an ideal food for small animals. The dense habit provides nesting areas for ducks and small mammals. Yellow sweet clover can be used for livestock, however, they may initially reject the legume due to its bitter taste and will eat it only after their palates become used to the flavor.

Sickle medick (Medicago falcata) is planted for soil improvement since it improves nitrogen content. The secret to its success is that it has a symbiotic relationship with a bacterium called Sinorhizobium meliloti, which actually does the work of fixing nitrogen. You can spot this widespread plant by its bright yellow flowers, growing in fields and disturbed lands.

Scots pine (Pinus sylvestris) is a native Eurasian pine plant that grows on nutrient-poor, dry, rocky soils. Given the name, it should come as no surprise that scots pine is the national tree of Scotland. It is also important within the forestry industry due to its use for wood pulp and timber.

Great burnet, a perennial herb endemic to the Northern Hemisphere's cooler latitudes, is a vital feeding plant for European large blue butterflies. It is a lovely ornamental plant that works well in herb and meadow gardens. Young leaves are harvested for eating.

The common juniper, the most common of its species, is an evergreen conifer that thrives on every continent. It is grown for the horticultural industry as well as a decorative shrub. The wood is used to make woodcrafts, while the cones are utilized to flavor and enhance various foods. Some Native American cultures use the berries for medicinal purposes.

One of the tallest cranesbills, the meadow crane's-bill is an herbaceous plant native to Europe and Asia. This plant with saucer-shaped pink, purple, and blue flowers is utilized in borders and rock or cottage gardens. Bees and other pollinators benefit from this plant's pollen and nectar.

Timothy (*Phleum pratense*) is a perennial grass that grows from 61 to 122 cm tall. Timothy is grown for its hay, and it is a favorite of insects and farmers. This species is an irritant to many allergy sufferers. The seed heads are about 40 cm long with spiked flowers that bloom in summer. Caterpillars feed on this grass, and it also provides a habitat for other insects.

Prairie sagewort (Artemisia frigida) is an evergreen shrub that blooms in summer with clusters of tiny, fragrant flowers, but its pollen is known to cause allergic reactions such as hay fever. Prairie sagewort is good at stabilizing the soil against erosion. It is also an important food source for jackrabbits and grouse throughout the Great Plains and the Rocky Mountains.

Puncture Vine_ (Tribulus terrestris)_ is a poisonous plant. The fruit consists of burs with sharp spines, which can puncture the skin of human beings and animals. They can also rupture a bicycle tire (hence the name) and penetrate shoe soles. The leaves contain compounds known as saponins, which are toxic to livestock.

This species of wild rose, prickly rose, is common in North America, Asia, and Europe. Prickly rose grows pretty pink flowers. It is drought-tolerant and will grow in part shade and various soil types.

Field bindweed (*Convolvulus arvensis*) is a native Eurasian plant related to morning glory. It is considered an invasive species in non-native areas because it competes with other plants for sunlight and moisture. Field bindweed is very hard to eradicate because its taproots grow so deep, and its seeds can remain viable for decades.

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.

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.

Butter-and-eggs (Linaria vulgaris) is a flowering toadflax species native to Europe and Central Asia. The plant gets its unusual nickname from the yellow color of its flowers. The butter-and-eggs is mildly toxic for livestock to consume. Because of the curved, semi-closed shape of its flowers, it needs strong pollinators like bumblebees.

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.

Bird vetch (Vicia cracca) is a flowering species of vetch native to Europe and Asia. In North America, bird vetch is considered an invasive species and a weed. In these environments, the flowering plant often grows in industrial disturbed environments like oil fields.

Scentless mayweed (Tripleurospermum inodorum) is a perennial wildflower that will grow to 76 cm tall. It blooms from summer to fall with large daisy-like flowers. Commonly found growing along roadsides and in disturbed areas. Originally from Europe it's introduced in North America and grows in scattered areas in the southwestern U.S.

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.

Lambsquarters has many other names, including pigweed, goosefoot, and bacon weed. This plant seems to appear out of nowhere and is considered by many to be a pesky weed. However, the greens of this plant are edible, can be prepared similar to spinach, and are packed with nutrients.

In Roman mythology, the goddess Minerva chastised the young Campion by turning him into the bladder campion plant as punishment for falling asleep instead of capturing flies for her owls. Native to Eurasia, this plant was introduced as a horticultural plant because of its lovely flowers. The leaves are eaten as vegetables in many nations.