American germander (Teucrium canadense) was once used to make beer before hops became popular. However, it has since been found that this common plant can cause liver damage. Its redeeming value is that it attracts pollinators such as hummingbirds and hummingbird moths.

The ti plant is a palm-like shrub that symbolizes the connection between the living and the dead for some Austronesian cultures, having many ceremonial purposes. In practical terms, ti plant is used to make dyes and is grown for ornamentation.

Golden polypody, or Phlebodium aureum, is an evergreen fern that is commonly grown as an easy-care houseplant. It’s blue-green fronds grow and spread through fuzzy, creeping rhizomes. This beautiful fern grows best in high humidity and bright, indirect light and can be moved outdoors in warm summer weather.

Common passionfruit (Passiflora edulis) is a vine species that produce fruit and is native to Brazil and Paraguay. It is useful for its edible fruit, which is sweet and eaten raw or juiced. Its flowers are showy too.

Hibiscus syriacus is a deciduous shrub with trumpet-shaped pink, lavender, or white flowers. Although it was first collected by Western botanists from Syrian gardens, “rose of sharon” is native to south-central and southeastern China. Because of its hardiness and prolific blooming, it is cultivated all around the world. It is the national flower of South Korea, mentioned in its national anthem.

Blue Mistflower is a flowering shrub in the sunflower family. Allergies to this plant can cause asthma and skin rashes. It is an invasive species in tropical and subtropical pastures and agricultural fields, outcompeting more useful crops. It disperses via spiky seeds that float down waterways and are light enough to be carried by the wind.

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.

The pot marigold is a herbaceous perennial plant often recognized by its thick, orange-yellow blooms with numerous petals. Flowers of the pot marigold have a long history of table use. They are often served in salads or as a decoration. The flowers can also be made into a similarly-colored dye for foods, textiles, or cosmetic products.

Angel's trumpet is a showy and unique addition to any garden and is prized for its flowers which have a trumpet shape and a variety of colors including yellow, orange, white, pink, or red. Use extreme caution, however, as all parts of angel's trumpet are poisonous when ingested.

An important food crop in some areas, zombi pea, or Vigna vexillata, is a perennial climbing plant that thrives in a variety of conditions. In addition to being cultivated for its tubers, it is also grown as a ground cover and green manure.

Musk mallow (Malva moschata) is a flowering plant native to Europe. Musk mallow was introduced into the New World early in the colonial period and has since spread around the world. There are blue, purple, pink, red, and white varieties of this species. Both the common name and specific epithet reference the "musky" scent the plant gives off.

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.

Red frangipani (Plumeria rubra) is a deciduous shrub or small tree native to Central and South America. It is widely cultivated as an ornamental plant in tropical and subtropical climates. All parts of the plant are toxic when ingested due to their high alkaloid content.

Jelly Bean is a cute-looking succulent native to Mexico that propagates extremely well from leaves. The common name comes from the colorful chubby leaves with red tips, which appear similar to the candy jelly beans. It is also called 'pork n' beans' because when exposed to full sun, its leaves turn from green to red as a defense mechanism.

Colloquially known as the money tree, this is a tropical species that's commonly cultivated in moist, warm climates. The name comes from an old tall tale, but it has led to the money tree being considered a talisman of good fortune. Bonsai versions are often trained during growth to develop braided trunks, which gives them a striking decorative appearance. Modern research suggests the nuts are potentially carcinogenic and should not be consumed.

Wild privet (Ligustrum vulgare) is an ornamental shrub but considered an invasive species in some area. Many English hedgerows have been made using these plants, though they're now often replaced with a more evergreen species. The wild privet's decorative flowers produce an unpleasant smell. The fruits are poisonous to humans but readily eaten by birds, making it possible for the seeds to spread far and wide.

The fringed willowherb is native to North America and East Asia, but was introduced to North Europe in the 1900s and spread rapidly. It prefers humid places such as in the wetlands or by the streams and ponds, but it can also survive in a variety of habitats such as roadsides and wastelands.

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 castor bean is important for its oil which is used as a lubricant, biodiesel ingredient, and rodent repellent, among other applications. The plants are now commercially planted globally, with India producing nearly 75% of the world's castor oil. Castor beans cannot be eaten because they contain a potent poison that's released if the seed is broken.

Like other thistle plants, the southern globethistle has prickly, weed-like leaves. However, its large, showy purple balls of flowers create a stunning display in gardens and flower beds. These cheerful blooms are drought tolerant and will grow just fine in poor soil.