All Plants
BANEBERRY (Native)
Actaea rubra
These plants grow at higher elevations (8000 feet) in cool, wet places. Grows 3 or 4 feet tall, has a thick stem and thick underground root, large featherlike leaves with a hairy underside. Poisonous parts: all parts, especially root stock and sap.
BITTERSWEET NIGHTSHADE (Native)
Solanum Dulcamara
Vine-like plant that may grow as high as 6 feet. Commonly mistaken for Deadly Nightshade.
CALLA LILY (Houseplant)
Zantedeschia species
Leaves shaped like arrow heads that may grow to 18 inches long and 10 inches wide. Leaves are glossy green. Stems are longer than the actual leaves. Spathe-shaped white flowers. Berry is not often seen.
CASTOR BEAN (Cultivated)
Ricinus communis
Usually grown as an annual. May grow six to 15 feet tall. Leaves alternate and may be up to three feet in diameter. Leaves are lobed and have five to 11 points.
COTONEASTER (Cultivated)
Cotoneaster species
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 (Cultivated)
Narcissus species
Common garden plant grown from bulbs usually with straight, flat leaves and white or yellow flowers.
DEATH CAMUS (Native)
Zigadenus species
Perennial herb with narrow, grass-like leaves. Yellow or whitish-green flowers form at top of central stalk. Bulbs often mistaken for onion but lack the characteristic onion odor.
DONKEY'S TAIL/CREEPING SPURGE/MYRTLE SPURGE (Native)
Euphorbia myrsinites
Grows wild in foothill areas in northeastern Utah, also cultivated in rock gardens. Blue-green diamond-shaped fleshy leaves in close spiral arrangement, end with a tooth-like tip.
DUMB CANE (Houseplant)
Dieffenbachia species
House plant that has large leaves up to 20 inches. The plant may reach 2 feet in width. It is generally taller than it is wide. Leaves are dark green to yellow green with variegations in white or pale cream.
EASTER LILY (Houseplant)
Lilium longiflorum
Leaves are shiny, dark-green and lance shaped. Flowers are white and trumpet-like.
FALSE HELLEBORE (Native)
Veratrum species
Grows in damp areas on meadows and hillsides at high elevations. It emerges as soon as snow melts in the spring and reaches a height of 1.5 to 2 meters. Leaves may measure 20 to 30 cm long and 7 to 15 cm broad. Cream-colored flowers grow in clusters at the top of a single unbranched stalk that resembles corn.
FIRETHORN (Cultivated)
Pyracantha species
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 (Cultivated)
Digitalis purpurea
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 (Cultivated)
Iris species
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.
JIMSON WEED (Native)
Datura Wrightii
Can grow up to 5 feet tall. Stems and leaves are velvety green in color. Flowers are snow-white in color and bloom in the summer. They open in the evening and fade during the day.
LILY OF THE VALLEY (Cultivated)
Convallaria majalis
Naturalized in gardens, prefers partial shade. Ground cover, 6-8 inches high, forms colonies. Broad, glossy green elliptical leaves.
LUPINE/BLUE BONNET (Native and Cultivated)
Lupinus argenteus
Grows from lower elevations up to 10000 feet in elevation. Approximately 20 inches tall. Compound leaves, with 6-9 lance-shaped leaflets, with a silvery covering. All parts, especially ripe seeds, are potentially toxic.
OLEANDER (Cultivated)
Nerium oleander
Evergreen shrub up to 20 feet tall. Leaves are leathery, dark green, long, and narrow to ten inches with pointed tip.
OREGON GRAPE (Native and Cultivated)
Mahonia Aquifolium
A low growing plant with year-round pinnated, waxy green leaves that resemble holly. The plant bears dainty yellow flowers in early summer and a dark blue berry that ripens late in the Fall. Mahonia Aquifolium
A low growing plant with year-round pinnated, waxy green leaves that resemble holly. The plant bears dainty yellow flowers in early summer and a dark blue berry that ripens late in the Fall.
PACIFIC YEW (Cultivated)
Taxus species
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.
PEACE LILY (Houseplant)
Spalhiphyllum species
Leaves come directly from the root and are large for plant, elliptical in shape and narrow to a point. Leaves are 1 -5 feet long and up to 6 inches wide. Flowers are spathe-shaped and either white or green. Berries may be found in clusters but are rarely seen.
PHILODENDRON (Houseplant)
Philodendron species
Fast growing plant with leathery, glossy leaves. Depending on species, may grow to 10-20 feet as a tree-like shrub.
POINSETTIA (Houseplant)
Euphorbia pulcherrima
Leaves are oval and 4-7 inches long. They are lobed.
POISON HEMLOCK (Native)
Conium maculatum
Grows along streamside and ditch banks at all elevations, tolerates poorly drained soils. Can be found throughout the United States. Grows 4-10 feet tall. Hollow, branched, spotted stems with purple splotches. Leaves are fern-like. Single white taproot that resembles a carrot.
POISON IVY (Native)
Toxicodendron rydbergii
Low shrub, rarely exceeds 4 feet in height. Prefers shady, wooded areas; found throughout the southwestern US
POTHOS/DEVIL'S IVY (Houseplant)
Epipremnum aureum
Commonly grown as an indoor potted plant and, in warm climates, as an outdoor ornamental. Heart-shaped or oval dark green leaves with yellow or white splotches, and slender stems. Grows as a vine.
RUBBER TREE (Houseplant)
Ficus species
Narrow, leathery, dark-green leaves that are eight-twelve inches long.
SNOW ON THE MOUNTAIN (Native and Cultivated)
Euphorbia marginata
Oval, light-green leaves-upper ones striped and marginated white. Contains milky white sap that is irritating to the skin and mouth.
STINGING NETTLE (Native)
Urtica dioica
Grows in moist, shaded woodland areas. Reaches about 4 feet tall at maturity, often grows in colonies. Leaves are lance-shaped and have sharp-toothed edges. Stems and leaves have hair-like structures.
UMBRELLA TREE (Houseplant)
Schefflera actinophylla/Brassaia actinophylla
The plant has a long stalk with glossy bright green leaves. The leaves are divided into 7-16 leaflets. Houseplant does not generally bloom.
VIRGINIA CREEPER (Cultivated)
Parthenocissus quiquefolia
Woody vine, leaves are elliptical and occur in groupings of five 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.
WART WEED (Native)
Euphorbia maculata
Stems are branching, hairy, and often pink to red in color. Can grow up to 12 inches tall, but often forms mats. Grows from a taproot. Leaves are ovate shaped.
WATER HEMLOCK (Native)
Cicuta douglasii
Grows along streamside, irrigation canals, and in moist pastures; seldom grows about 8500 feet in elevation. Grows 3 to 7 feet tall. Thick rootstocks have cross partitions at the base. Roots have separate chambers inside, and a musky odor. Leaves are lance-shaped, with toothed edges.
WESTERN MONKSHOOD/WOLFBANE (Native and Cultivated)
Aconitum columbianum
Grows 2-4 feet tall in damp shady places in upper elevation mountain areas. Has fleshy roots and stout stems. Leaves are dark green and deeply divided with multiple segments; leaves become smaller towards the top of the plant. Poisonous parts: all parts, especially roots and leaves.