Ipomoea lobata, formerly known as Mina lobata, is a species of flowering vine in the Convolvulaceae family, commonly referred to as the morning glory family. It is widely cultivated as an ornamental plant for its striking and unique flower racemes, which feature cascading blooms that change color from red to orange to pale yellow and finally to white. It is often called the Spanish flag, firecracker vine, or exotic love vine. This familial connection is crucial, as many plants within the Convolvulaceae family are known to contain compounds that can be toxic to mammals.
The primary toxicological concern with many Ipomoea species, including the common morning glory (Ipomoea tricolor), is the presence of ergot alkaloids, notably ergine (LSA – lysergic acid amide). These compounds are chemically related to LSD and are concentrated in the seeds of the plant. While the specific toxicity profile of Ipomoea lobata has not been as extensively documented as its cousin Ipomoea tricolor, it is prudent to assume that it may contain similar indole alkaloids. These compounds are part of the plant's natural defense mechanism against herbivores and pests. The concentration of these alkaloids can vary depending on the plant's cultivar, growing conditions, and age.
The risk of poisoning is highest if a pet, particularly a dog or cat, ingests a large quantity of the seeds. The foliage and flowers are generally considered to have a much lower concentration of these toxic compounds, but ingestion can still cause gastrointestinal upset. The clinical signs of poisoning from these alkaloids are primarily neurological and gastrointestinal. Symptoms may include vomiting, diarrhea, lethargy, disorientation, agitation, tremors, and ataxia (loss of coordination). In severe cases, particularly with very large ingestions, hallucinations and more serious neurological effects could occur. The hard seed coat also poses a risk for intestinal blockage, especially in smaller animals.
Given the confirmed toxicity of closely related species and the potential presence of harmful ergot alkaloids, Ipomoea lobata should be treated as a plant toxic to cats, dogs, and other pets. The safest approach is to prevent access entirely. If you wish to grow this vine, it should be placed in an area completely inaccessible to your pets, such as a fenced-off section of a garden or in hanging baskets well out of reach. Be vigilant in collecting and disposing of any fallen seed pods or seeds to prevent accidental ingestion. If you suspect your pet has consumed any part of this plant, particularly the seeds, it is critical to contact your veterinarian or an animal poison control center immediately, providing them with the plant's identification.
