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.

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.

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.

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.

Neem tree (*Azadirachta indica*) is a flowering tree species related to mahogany and with an appearance similar to that of the chinaberry tree. For centuries, it has played an important role in Indian culture. Commercially, the neem tree is used to produce neem oil, pesticides, and cosmetics.

Apple of Sodom, or Calotropis procera, is an extremely poisonous plant. The fruit of this plant ripens and bursts, causing the seeds to scatter. In Jamaica, the fibers inside of the fruit are collected and used to stuff pillows.

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.

The sicklepod (Senna obtusifolia) grows best in full sun and moist soil. It thrives in rocky dirt and nutrient-rich soil. For an annual plant, it's slow to develop and grows best late in its growing season.

White leadtree (Leucaena leucocephala) is a small tree native to Mexico and Central America. Planting white leadtree makes the soil fertile as other Legumes do. It has been also used for livestock feed and firewood. This tree is also called a "miracle tree" for its many uses.

Pencil cactus (Euphorbia tirucalli) is a small tree shrub that grows best in warm arid climates and is named for its pencil-sized succulent branches. Pencil cactus is native to black clay soils in Africa and can be poisonous if ingested. It produces a latex compound that can be poisonous and cause blindness.

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.

Tree tobacco (Nicotiana glauca) is a wild tobacco species native to South America. On other continents, tree tobacco is considered an invasive species. All parts of this plant are poisonous.

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.

Dove's-foot crane's-bill (Geranium molle) is an annual with soft gray-green leaves. Pretty pink flowers appear summer through fall followed by the fruit which features a long neck that looks like a crane's bill. It will grow in sunny locations but prefers shade and will reach 8 to 41 cm tall.