Common name(s) Crown flower, giant milkweed.
Toxin(s) Cardiac glycoside, vesicant (may induce allergic dermatitis rather than direct effect).
Toxic part(S) The whole plant contains the glycoside. The latex contains the vesicant.
Signs Acrid taste usually limits ingestion. Exposure of the skin or mucous membranes to the latex may result in vesicle formation. Keratoconjunctivitis will result if the cornea is exposed. ingestion of significant quantities will result in ECG abnormalities.
Treatment Wash the exposed tissue with plenty of warm water and soap. Flush the eyes with sterile saline or water for 15 minutes. If cardiac abnormalities are seen, manage according to ECG assessment