Crown Flower Poisoning

The crown flower (Calotropis gigantean) is originally from Asia and grows in tropical climates including Australia, Florida and Hawaii. According to "Top Ten Inquiries About Plants Received by the Hawaii Poison Hotline," the plant's sap may cause skin irritation and burning. If the plant is ingested, it could cause nausea, vomiting and stomach pain, as well as cardiovascular symptoms, dizziness, headache and confusion.

Recognizing the Crown Flower

• This evergreen shrub is 8 to 10 feet tall and has oval leaves. The lavender or white flowers are roughly 2 inches wide, with five petals and a small crown in the center. The leaves and stems produce a milky-white sap. There are several varieties of this shrub, some as small as 2 feet tall with 1/2-inch-wide flowers.

Hazards to Animals

• Contact a veterinarian if your pet consumes crown flower.

  Although crown flower sap is known to be toxic to both humans and animals, cattle are known to eat it occasionally without ill effect. If your pet ingests a part of the crown flower plant, particularly the sap, seek veterinary assistance immediately.

First Aid

• First aid recommendations for humans ingesting part of the crown flower are the same as for any poison; if the patient is unconscious or having difficulty breathing, call 911. Otherwise, contact the National Poison Control Center immediately. They will provide instructions based on the patient's specific situation and medical history.

Crown Flower Uses

• In spite of their toxic traits, crown flowers are prized in Hawaii for making leis and attracting monarch butterflies. Additionally, parts of the plant are considered medicinal, and the fibers are used in rugs and fishing nets.