Daylilies (Hemerocallis sp.) Hemerocallis sp. have the same concerns as Lilium sp. and can produce severe toxicosis and AKI. All parts of the plant are toxic and there are documented cases where exposure to the pollen alone has caused AKI.

Rhizomes are also underground stems, but they grow horizontally (and often quickly). Examples of rhizomes include bamboo, calla lily, canna, cast iron plants, grass, ground ivy, bearded iris, lily of the valley, and waterlily. …

Although they may be confused as bulb plants, they are actually grown from rhizomes.

Types of Bulbs and Tubers Tulips, hyacinths, daffodils and alliums are tunicate bulbs. A lily is an example of a non-tunicate bulb.

The entire lily family, including Lily of the Valley, Daylilies, and Easter Lilies, are toxic to both humans and pets. In humans, any part of the plant, when eaten, causes headache, hallucination, red blotchy skin, possibly coma and sometimes death.

Unlike true lilies, daylilies are not toxic to dogs. So if you’ve got some of these vibrant blooms growing your garden, you don’t need to fret if you catch Fido chewing on a leaf or petal. Daylilies are popular with gardeners because they’re resilient and easy to cultivate in most climates.

Lilies aren’t just dangerous to cats—they pose a risk to dogs, too. While lethal lily poisonings are rare in dogs, lilies are still considered to be poisonous to our canine companions.

Lily of the Valley contains toxins called cardiac glycosides which can cause weakness, GI upset or inappetence, and heart problems including an abnormally high or low heart rate and/or an abnormal heart rhythm. Both dogs and catscan be affected.

True lilies, such as the Asiatic, Day, Easter, Tiger and Japanese Show lilies are much more toxic to animals. Ingesting a few petals can result in kidney failure.

Clinical Signs: Vomiting, inappetence, lethargy, kidney failure, and death is possible.

The common Easter lily, the tiger lily, Asiatic or Japanese lily, and the numerous Lilium hybrids, and day lilies (Hemerocallis spp.) are highly toxic to cats causing nephrotoxicity that can prove to be fatal. All parts of the plants are poisonous to cats, but especially the flowers.

Most of this Tiger Lily is edible by humans but all parts are toxic to cats. It causes feline kidney failure. In Asia and Japan this lily is grown for its edible bulb. Cooked it resembles turnips in flavor.

Also known as a tiger lily, they were introduced in the late 19th century as an ornamental plant. They quickly became ubiquitous in North American gardens because of their showy flower, hardiness, and ability to spread; exactly what makes them such a dangerous invasive species.