The heart of jesus is a poisonous leafy plant. Its paper-thin, heart-shaped leaves lend the plant its common nickname, along with names like "angel wings" and "elephant ear." Though native to South America, its primary hub of cultivation is now around Lake Placid, Florida, where it has become a popular centerpiece for an annual festival.

Snake plant can be considered a houseplant and an architectural display due to its sword-like leaves with bold striping patterns, which are distinctive and eye-catching. However, use caution with this plant because it is poisonous when ingested and can cause nausea, vomiting, and even swelling of the throat and tongue.

Cassava (Manihot esculenta) comes from South America but has become a major source of carbohydrates for many peoples around the world. This is especially true in low-income areas since it is cheap to grow. Only when properly cooked the starchy root of it is edible. The rest of the plant is poisonous if eaten. Cassava's natural starches are also useful in laundry products, and it is under investigation as a source of biofuel as well.

Desert rose is widely cultivated as a houseplant or as bonsai for its beautiful flowers. As a succulent plant originating from the Sahara and tropical Africa and Arabia, it requires a minimum temperature of 10 ℃ to survive. Its sap was used to poisoning arrows in Africa.

The madagascar periwinkle (Catharanthus roseus) is an evergreen subshrub or herbaceous plant. It has a long history of cultivation. Over the years, many cultivars have been developed, most commonly with the aim of incorporating new colors or making the plant more tolerant to cold.

Arrowhead plant (Syngonium podophyllum) is a beautiful foliage plant, one of the most popular species of the Araceae family. Due to its air purifying qualities and good looks, arrowhead plant is often cultivated as a houseplant. Every part of this plant is toxic, so it's best to keep it away from kids and pets.

The Euphorbia milii is commonly known as the crown of thorns or Christ thorn, as it is believed to the plant associated with the crown of thorns that was worn by Christ. It needs to stay above 10 ℃ with full sun.

The focal point of a dieffenbachia is the beautiful look and patterns of the foliage, which are often variegated. This plant has showy white blooms, but only flowers in perfect conditions. Use caution, because the dieffenbachia is poisonous; if the sap is ingested it can cause muteness for up to two weeks by numbing the throat and vocal cords.

Monstera obliqua (Monstera obliqua) is a plant species native to Central and South America. Monstera obliqua is named for the holes in its leaves. This species is considered expensive to cultivate and is also considered a rare houseplant species. Monstera obliqua is often compared to similar species Monstera adansonii, which has leaves with a different shape and texture.

The pepper are commonly used for cooking in places such as the Southern U.S. and Central America. Most are moderately spicy, though because there are so many variants, the spice level can vary dramatically. Cayenne powder is also a popular seasoning product made from pepper plants.

The zanzibar gem is a flowering green plant native to eastern Africa. It also gets the name emerald palm because of its bright, glossy color. Today, the zanzibar gem (Zamioculcas zamiifolia) is grown around the world as a houseplant, in part because it is easy to grow and care for. Though this plant is mildly toxic if ingested, its danger level is often overstated.

The artillery plant is often utilized as a groundcover or an ornamental in many landscapes. It's commonly named the "artillery plant" because the males generally produce pollen in an explosive way. It grows best in a humid environment in partial shade or indirect sunlight. It's a particularly popular plant in indoor rock gardens.

The pin stripe plant, or Goeppertia ornata, is a gorgeous tropical houseplant with distinct markings on the leaves. Although calatheas have a reputation for being difficult to grow, the pin stripe plant is one of the easier choices to care for. The plant is sometimes named as a member of the prayer plant family for the way it closes up its leaves in the evening.

Papaya is a fruit-bearing plant that originates from Central America. The fruits are edible and sweet and juicy when ripe. An enzyme collected from the milky sap is used as a meat softener, which if ingested may be toxic. Keeping a papaya plant in your garden will welcome many birds to your landscape.

Florist kalanchoe (Kalanchoe blossfeldiana) originates from Madagascar and has been a popular houseplant since the 1930s. Unlike most other succulents that are grown for their interesting leaves, Kalanchoe blossfeldiana is valued for the colorful flowerheads it produces in autumn and winter. This is the reason it is commonly gifted during holidays, earning it another name - Christmas kalanchoe. It is toxic to pets.

Solanum lycopersicum is an annual or perennial herbaceous vine native to Central and South America that produces a large, juicy, edible fruit known as tomato. Today there are over 10000 cultivated varieties. Although tomato is the world’s most popular vegetable, botanically it is a fruit.

Brazilian prickly pear (Brasiliopuntia brasiliensis) is a tree-like cactus that will grow to 20 m tall when planted in the ground. It will not grow nearly that large if grown in a container. Flowers are pale yellow to bright orange. Fruits are pear-shaped and range in color from yellow to red to purple. Plant in full sun if you live in a warm, humid climate and little maintenance is required. If growing in a container, make sure it gets plenty of bright light and dry, well-drained soil.

Aloe vera is an evergreen succulent species native to the Arabian Peninsula. The thick leaves are filled with gooey flesh that stores water for survival in its native desert territories. Aloe vera has become a popular houseplant and is also incorporated into a wide range of cosmetics and skin-care products.

The Nephrolepis exaltata is commonly known as the boston fern or sword fern. It is a common and popular houseplant that is native to tropical environments. While the boston fern can survive droughts, it prefers humid environments and should be misted regularly. It is generally considered non-toxic and is pet friendly.

The garden croton is a showy tropical display that does well indoors or in warm climates. Known for its attractive foliage, this plant can have both color and structural variations in its leaves. Leaf colors can include orange, yellow, scarlet, white, and green, and many times all are present on one plant.