The water snowflake is an aquatic plant native to Asia. It floats atop slow-moving bodies of water in a similar manner to water lilies, and ordinarily does not root in the soil below. During times of drought, however, if its body of water disappears, the water snowflake can put down roots to help it survive until the waters return.

Water hyacinth (Eichhornia crassipes) is a fast-growing flowering plant species with ovular, waxy leaves. Water hyacinth is listed as a federal noxious weed in the United States. This species is invasive to ponds, lakes, rivers and other wetland habitats. It forms dense, floating mats of vegetation that restricts light to underwater environments.

Aroma (Dichrostachys cinerea) is a legume species as known as sicklebush, Bell mimosa, Chinese lantern tree and Kalahari Christmas tree. Aroma is native to Africa, the Indian subcontinent and North Australia. This species is a serious invasive species problem in Cuba.

The Ipomoea aquatica, also known as water spinach, is an herbaceous trailing vine grown in Asia for its edible roots and shoots, which are used in stir-fry and other dishes. It blooms in the summer with showy, bell-shaped flowers that appear solitary or in clusters. The plant can become an ecological threat as it forms dense floating mats over the water surface that shade out native plants, depriving them of sunlight and oxygen.

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.

Dwarf morning glory is native to tropical regions of Australia, Polynesia, and Africa, and whose blue flowers bloom year-round. Burning the leaves produces a fragrant smoke that is used as incense. In Kerala, India, dwarf morning glory is a sacred plant.

Rosary Pea is among the world's top 10 most poisonous plants. Ingesting a single seed of this plant can be fatal. However, these seeds are prized for making both jewelry and musical instruments.

Common globe amaranth (Gomphrena globosa) is an edible flowering plant native to Central America. Other common names for common globe amaranth are the makhmali and vadamalli. Common globe amaranth is commonly cultivated in landscaping for its bright colors, and is used in leis in Hawaii. Common globe amaranth attracts insects, including butterflies and bees.

Baobab (Adansonia digitata) is indigenous to Africa, Australia, Madagascar, and the Arabian Peninsula. It thrives in areas that are dry and hot. It lives longer than virtually all other living things, and there are specimens alive today that are 3,000 years old or more. It has a large, water-filled trunk that is 28 m or more in circumference.

White egyptian lotus, with its bright white flowers and wide lily pads, is a common sight in ornamental garden ponds. The flowers open at night and stay open until well into the next day. The plant flowers for the whole summer too. The plant grows through rhizomes and it can survive long periods of drought and grow again when ponds refill.

Kapok tree (Ceiba pentandra) is a rain forest plant that can shoot up to as much as 61 m. It towers over every other plant in its native habitat. The trunk can get as wide as 3 m in diameter. Its nooks and crannies are hosts to a staggering array of both plant and animal species, including birds and frogs.

White mouth dayflower (Commelina erecta) is a perennial wildflower found in coastal uplands, scrub habitats, and pinelands. The flower consists of two large petals situated right at the top of the stem. These blooms are purplish-blue, and there's a much smaller white petal below these two. This is why the flower has "White Mouth" in its name.

In warmer climates, the downy thorn-apple is an invasive perennial. In colder zones, it’s an annual that can be controlled. It is native to East Africa and is naturalized in China. It is not currently a problem in the United States, but it would become invasive if it were introduced. The reason for this is that the plant will quickly establish itself and spread rapidly. It is cultivated in gardens, but care must be taken to prevent it from overtaking other plants. The weed poses another threat: it is highly toxic to humans and animals. There are not any current bans on the sale, transport, or cultivation of the plant, but it is generally not encouraged.

Since it has been cultivated for centuries, the native habitat of true indigo is not known. This shrub can be annual, biennial, or perennial depending on the climate where it's grown. True indigo has a long history of commercial use as a cash crop - it was a source of dark blue (indigo) dye before alternative synthetics were developed.

Roselle (Hibiscus sabdariffa) is a hibiscus species native to Africa. The fragrant plant has many uses as an infusion in beverages, as a vegetable, and in culinary use in jams and preserves.

Sim sim (Sesamum indicum) was one of the first oilseed crops in history. It has roots in India and Africa, but can now be found around the world. Since it has been domesticated for so long, it has been adapted to many climates and soil types. The nuts may trigger allergies in some individuals.

Golden shower tree (Cassia fistula) is a plant that is found in tropical and subtropical regions. It is at its peak during the middle of the summer. Golden shower tree is both the national flower and tree of Thailand. The Latin name "Cassia" comes from "Kassia", which means "fragrant plant." It holds a sacred place in scriptures like the Ramayana and Mahabharata.

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.

Mesquite is a small deciduous tree that is both highly invasive and quite valuable. The wood is used as fuel and timber, and the pods are used as fodder. Mesquite also helps with erosion control. Both its value and invasiveness cause a conflict of interest when managing this species.

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.