List of Cultivated Plants

Important: If someone has been exposed to a potentially harmful plant, or you have additional questions, please call your poison control center at 800-222-1222.

Disclaimer: The information on this website is not intended to be comprehensive. It is a compilation of the plants most frequently encountered by the Utah Poison Control Center (UPCC). The UPCC staff have tried to provide the most accurate information possible, however, we do not claim that this website is error-free.

This project is supported by funds received through grant # H4B HS 00 008 awarded by the Department of Health and Human Services, Health Resources and Services Administration. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Health Resources and Services Administration, Division of Healthcare Preparedness, Healthcare Systems Bureau.

Thumbnail Common Name
(Scientific Name)
Type Description
Castor Bean (Ricinus communis) Castor Bean
(Ricinus communis)
Cultivated Usually grown as an annual. May grow 6-15 feet tall. Leaves alternate and may be up to 3 feet in diameter. Leaves are lobed and have 5-11 points.
Cotoneaster (Cotoneaster species) Cotoneaster
(Cotoneaster species)
Cultivated May be ground cover to small upright shrub to very tall graceful shrubs (25 feet). Flowers are white or pinkish and bloom in Spring. They resemble tiny single roses. Berries may be red or orange-red.
Daffodil (Narcissus species) Daffodil
(Narcissus species)
Cultivated Common garden plant grown from bulbs usually with straight, flat leaves and white or yellow flowers.
Firethorn (Pyracantha species.) Firethorn
(Pyracantha species.)
Cultivated Habit ranges from upright to sprawling. Glossy green oval shaped leaves. Has needle-like thorns. Planted as shrubs or ground covers in full sun.
Foxglove (Digitalis purpurea) Foxglove
(Digitalis purpurea)
Cultivated Cultivated in gardens throughout the United States. Grows up to 4 feet tall. Leaves are grayish-green in color and are wooly on their underside.
Iris (Iris species) Iris
(Iris species)
Cultivated Sword or grass-like leaves with showy flowers that bloom in Spring or early summer. They grow from bulbs or rhizomes, 1 to 2 feet tall.
Lily of the Valley (Convallaria majalis) Lily of the Valley
(Convallaria majalis)
Cultivated Naturalized in gardens, prefers partial shade. Ground cover, 6-8 inches high, forms colonies. Broad, glossy green elliptical leaves.
Oleander (Nerium oleander) Oleander
(Nerium oleander)
Cultivated Evergreen shrub up to 20 feet tall. Leaves are leathery, dark green, long and narrow to 10 inches with pointed tip.
Pacific Yew (Taxus species) Pacific Yew
(Taxus species)
Cultivated The yews are evergreen shrubs or small trees with reddish-brown bark in thin flaking scales; leaves are dark green to yellow-green, shaped like a narrow sickle, stiff, 1.25 to 2.5 cm long, and pointed at the apex. Fruit is bright scarlet red or sometimes yellow and fleshy.
Snow on the Mountain (Euphorbia marginata) Snow on the Mountain
(Euphorbia marginata)
Native, Cultivated Oval light green leaves, upper ones striped and marginated white. Contains milky white sap that is irritating to the skin and mouth.
Tulip (Tulipa species) Tulip
(Tulipa species)
Cultivated Common garden plant grown from bulbs.
Virginia creeper, woodbine, American ivy, five-leaved ivy (Parthenocissus quiquefolia) Virginia creeper, woodbine, American ivy, five-leaved ivy
(Parthenocissus quiquefolia)
Cultivated Woody vine, leaves are elliptical and occur in groupings of 5 leaflets with saw-toothed edges. Foliage changes from green in summer to orange in Fall. Planted in gardens as a ground cover or on fences.