Ivies are native to many countries in Europe, Africa, and Asia. Nannette Richford Nannette Richford is an avid gardener, teacher and nature enthusiast with more than four years' experience in online writing. But this reaction is specifically an allergic reaction, which is why some people are more likely to come down with poison ivy than others: If you're not allergic to urushiol, then you're not going to get poison ivy. How to Identify Poison Ivy. Poison ivy is a well-known plant that’s common in the undergrowth of North America. Poison ivy is number one on our list of plants to avoid, because it contains a resin that can induce a very unpleasant skin rash if you touch it. Although most ivies have dark-green leaves, some have slightly different colors. The allergenic triumvirate of poison oak, poison ivy, and poison sumac can really act as dampeners on your outdoor activities. Types of Ivy: Different Types of Ivy Plants for Indoors and Outdoors (With Pictures) Ivy is in the botanical genus Hedera that produces evergreen leaves that grow quickly. English Ivy. Gardenerdy gives you some stellar identification tips to help you avoid an encounter with these poisonous plants. While there are 15 common types of ivy plants, it can be difficult to identify the different subspecies just by looking at them.Whether you want to grow an ivy plant indoors or get a good climbing ivy for your outdoor walls, here are some ways to identify the different ivy types. If you’re a tenderfoot, you may not know what these three plants […] Urushiol causes a reaction, and that reaction is manifested in a rash. There’s also nothing like a woodland landscape to put you at risk for coming into contact with one of summer’s greatest skin irritants – poison ivy, oak, or sumac. Many types of ivy take their name from their native country. Typically, poison ivy plants are characterized by various stems that each contain three leaves. Domestic Weed Killer. And many places have none of these nasty plants. Poison ivy may grow as a single plant, a bush or a vine.