Senna siamea (Burmese: မယ်ဇလီ, mezali; Thai: ขี้เหล็ก, khilek), also known as Siamese cassia, kassod tree, cassod tree and cassia tree, is a legume in the subfamily Caesalpinioideae. It is native to South and Southeast Asia, although its exact origin is unknown. It is a medium-size, evergreen tree growing up to 18 m with yellow flowers. It is often used as shade tree in cocoa, coffee and tea plantations. In Thailand it is the provincial tree of Chaiyaphum Province and some places in the country are named after it. Leaves are alternate, pinnately compound, with slender, green-reddish, tinged axis and 6 to 12 pairs of leaflets on short stalks, rounded at both ends.

African oil palm is a tall palm (up to 20 m tall), widely cultivated for oil production. The oil is extracted from the pulp of the fruit and the kernel (seed). It is native to west and southwest Africa, but it's naturalized in many parts of the world.

Sisal (Agave sisalana) is a succulent plant whose yellow flowers bloom along a stalk rising up to 9 m tall and have an unpleasant scent. The flowers, stalk, basal rosette and sap of this plant are edible. Plant in full sun outdoors or place in a bright, sunny location indoors.

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".

It is generally 91 to 152 cm tall, occasionally up to 3 m. Stems are hairy and square in cross-section. Leaves are oppositely arranged, 2 to 10 cm long, with shallowly toothed margins, and emit a strong minty odor if crushed. Flowers are pink or purple, arranged in clusters of 2.5 to 13 cm in the upper leaf axils.

The grain of grain sorghum is utilized for human consumption, animal feed, and ethanol manufacturing. It is commonly grown in tropical and subtropical countries, originating in Africa. The grain is used to make liquor, animal feed, and bio-based ethanol, among other things.

Yellow oleander is extremely toxic and many cases of accidental poisonings have been recorded. The toxic oils found in this plant are sometimes used in pest control measures. However, the Cascabela thevetia does have significance in some religious ceremonies, specifically the worshiping of Shiva, a Hindu deity.

Pigeon pea (Cajanus cajan) is a woody perennial shrub that will grow to 4 m tall. Flowers attract butterflies and bees. Edible seeds, seedpods, stems and shoots. A nitrogen-fixer, it improves the quality of the soil where it is planted. Grows in full sun with moist, well-drained soil. It is drought-tolerant and will grow in a variety of soil conditions.

Guava (*Psidium guajava*) is a fruit-producing evergreen shrub that grows natively in the Caribbean region and South America. Guava attracts the honey bee and other insects, and guava fruit is edible. Additionally, guava wood is used for smoking meat.

Royal poinciana (Delonix regia) is also known as the “peacock tree” or the “flamboyant tree.” It’s a Madagascar native and is known for its brilliant crimson or red-yellow flowers. It grows exceedingly fast, reaching its maximum height of around 12 m in a short amount of time.

Golden dewdrops (Duranta erecta) is an ornamental sprawling shrub commonly found in subtropical and tropical gardens all over the world. Its gentle purple blossoms are often visited by butterflies and hummingbirds. Golden dewdrops is considered a weed in Australia, South Africa and certain parts of East Asia.

Maize (Zea mays) is a well known domesticated cereal grain first domesticated in Mexico. In much of the world it is also called corn. Worldwide cultivation of maize surpasses other prominent grains like wheat and rice. Maize must be planted in the spring due to its intolerance for cold weather.

Solanum campylacanthum is a robust, spiny shrub known for its angular, curved thorns and lush, broad leaves. Its dainty flowers bloom into yellow berries, offering a stark contrast against the greenery. Adapting to survive in arid regions, solanum campylacanthum's thick foliage provides shade, conserving moisture for resilience against dry climates.

Prickly pear (Opuntia ficus-indica) is a flowering cactus native to Mexico. Prickly pear is a widely domesticated species grown for agricultural purposes in arid climates throughout the world. This species is edible and planted widely as a fruit and vegetable crop. Prickly pear is commercially valued as food, animal fodder, an adobe ingredient, and is also planted to control soil erosion.

Cowpea (Vigna unguiculata) is an annual grain legume that is an important crop in many regions. The plant has been used as forage for animals and for cow feed. It can be short and bushy or grow as a long vine up to 2 m tall. The edible seeds and seed pods are very small and kidney-shaped.

The barbados nut (Jatropha curcas) plant is cultivated throughout the world for ornamental uses because of its rapid growth. Since cattle will not consume the leaves, it works very well as a living fence around grazing areas. Oil is extracted from the nuts and used as a torch fuel and burns so well that the fires are not affected by strong winds!

The chinaberry tree is considered an invasive species in many areas because of its tendency to grow into impassable thickets and crowd out other plants. The entire chinaberry tree is poisonous to humans and many other animals, although cows and some birds have no problems eating the fruit.

Giant Cabuya (Furcraea foetida) is an evergreen perennial that can grow to be 1.2 to 1.5 m tall. It has beautiful, variegated foliage that forms a fountain of sword-shaped leaves with rippled edges. They look like ribbons unfurling. This species is tolerant to heat, humidity and drought. It is often planted on sunny borders.

An important subsistence crop, pearl millet is hardy and drought-tolerant. Also known as Cenchrus americanus, it grows well near deserts where the rainfall is low. It has been cultivated in the United States since the 1850s and there are records of this important crop being grown since 2000 B.C.

Coffee senna (*Senna occidentalis*) is a perennial shrub that prefers warm and humid environments. It is sometimes considered an invasive weed that grows in open woodlands, waste areas, and roadsides. It blooms in spring with yellow flowers, followed by brown fruit in late summer and early fall. Seeds can be used as a coffee substitute, although it does not contain caffeine.