What climbing lily's tubers contain colchicine and are highly toxic?

The glory lily is the climbing lily whose tubers contain colchicine and are highly toxic. Usually identified as Gloriosa superba, it is a tuberous perennial in the family Colchicaceae, with showy, reflexed flowers and leaf tips adapted as tendrils for climbing.

Every part of the plant can be poisonous, but the tuberous rhizomes and seeds are especially dangerous. Colchicine disrupts cell division and can cause nausea, vomiting, abdominal pain, bloody diarrhea, dehydration, organ damage, respiratory depression, seizures, coma, and death. Poisonings have occurred when the underground parts were mistaken for edible yams or sweet potatoes.

The common-name mix-up is understandable: autumn crocus also contains colchicine and is highly poisonous, but it is not the climbing lily described in the question. Monkshood contains potent aconitine, while lily of the valley contains cardiac glycosides. Glory lily is also known as flame lily, fire lily, and climbing lily, and it is the national flower of Zimbabwe.