Nerium oleander, colloquially known as oleander, is a shrub or a small tree, known for its majestic pink five-lobed flowers and deep green lanceolate leaves. Oleander is one of the most poisonous popular decorative garden plants, so it is advised to keep small children and pets away from it.

Animated oat is a grass historically utilised as a pasture plant. However, it is now considered an aggressive invasive species in cultivated and disturbed lands in many regions across the globe. Animated oat mimics another crop, the Avena oat, and produces an abundance of seeds that get mixed with the harvested product.

The rivet wheat plant is commonly cultivated as durum wheat. Durum wheat is very hardy and suitable for cold climates. Its seeds can be eaten whole or turned into flour. Rivet wheat flour has been traditionally used for pasta and biscuits. The fibers from the plant are also used for making green-toned paper.

The common lantana is a flowering plant that grows best in tropical environments. It spread outside the Americas when the Dutch brought it to Europe. The plant is generally regarded as an unwanted weed that reduces biodiversity. Additionally, it is toxic to livestock and harms the output of farmland.

Sweet chestnut (Castanea sativa) is a chestnut tree native to the southern region of Europe. The seeds of sweet chestnut are one of the most ancient foods. Sweet chestnut grows well in weathered soil at an acidic pH.

Spiny cocklebur (Xanthium spinosum) is largely considered a highly invasive weed that is found throughout the world. It produces prickly seed pods that become caught on passing animals and are then dispersed over a great distance. The burrs on the seed pods can damage sheep’s wool, making it an expensive weed for some farmers to deal with.

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.

Mediterranean spurge (Euphorbia characias) is a flowering evergreen shrub that blooms from spring to early summer. Its nectar glands attract many pollinators, including bees and butterflies. This species grows well in dry or well-drained soil and has become a popular choice for desert gardens.

Cape leadwort is a flowering plant native to South Africa. Its Latin name, Plumbago auriculata, is derived from the word auriculata meaning "with ears," referring to the shape of its leaves. The leaves serve as food for the caterpillar of the Hummingbird hawk-moth. The plant's sticky sepals, on the other hand, can grab animals as small as a housefly.

Evergreen spindle(Euonymus japonicus) is a popular ornamental evergreen shrub with numerous cultivars. Due to its superb adaptability and decorative looks, evergreen spindle can be found in parks and gardens all over the world. Its flowers produce a lot of nectar, which makes this plant very attractive to bees.

Jerusalem thorn is a deciduous shrub native to the Mediterranean region. In the Bible, it is mentioned as the plant from which the crown of thorns was made that was placed on Jesus' head prior to his crucifixion. In the garden, it is often used as a hedge or border plant due to its thorny branches, which can help to deter animals and intruders. It is also a popular choice for xeriscaping, or landscaping in dry regions, as it is drought-tolerant and can thrive in poor soil conditions.

Giant reed, also known as Arundo donax, is a large ornamental grass that can grow in both standing water and well-drained soil. In warm climates, the plant can reach 6 m tall and grow long purple flowers. Reeds for musical instruments are made from this plant.

Sea squill is a flowering perennial that grows from a bulb. In the fall, the tall leaves die back and make way for the flower spike of red or white clustered petals. This plant is poisonous and has been used in the making of rat poison.

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.

An unusual plant, exploding cucumber is aptly named. When ripe, this plant shoots out a stream of liquid containing its seeds. Although it looks like a small cucumber, this plant is poisonous.

While the black locust may have a bad reputation in many areas of the US due to its opportunistic and rapid growth, there are benefits to this tree. The black locust is an important food source for honey bees and is a good choice for windbreaks since it grows so quickly (91 to 122 cm per year). Its wood also resists rot, so it is used in fenceposts. The plant is highly toxic, though, and should never be consumed.

Sea daffodil (Pancratium maritimum) is a bulbous perennial species native to the Canary Islands, the Mediterranean region, and the area surrounding the Black Sea. The sea daffodil grows on beaches and coastal sand dunes. This species is often cultivated as an ornamental plant and requires full sunlight and well-drained soil to grow well.

Native to the Mediterranean, the italian arum is cultivated as an ornamental plant and has been naturalized in a variety of places, including the Caucasus region, Argentina, and the United States. The berries and leaves are considered to be poisonous and should avoid ingesting.

Common lilac is a shrub native to the Balkan Peninsula that blooms with a fragrant blossom. It grows on rocky terrain and has a suckering habit. The blossoms are used to flavor honey, sugars, food, and other delights and farmed for its fragrant flowers in the spring.

Field marigold (Calendula arvensis) is an annual herbaceous plant that can grow up to 51 cm tall. It blooms from spring to fall and can grow during the winter months in warmer climates. It produces a single flower head with yellow ray-like petals that surround an orange disc-shaped center. The field marigold thrives in full sun to partial shade and attracts bees, butterflies, and birds.