What are some flowering plants that are deadly to humans?

Question

What are some flowering plants that are deadly to humans?

Answer 1

Castor bean - Seeds are fatal. One or two castor bean seeds are near lethal dose for adults.

Foxglove - Leaves are one of the sources of the drug digitalis. In large amounts causes irregular heartbeats and pulse, digestive upset, and mental confusion.   May be fatal.

Golden chain - Bean-like capsule causes severe poisoning. Excitement, staggering, convulsions and  coma. May be fatal  

Hyacinth - bulbs cause nausea, vomiting, diarrhea. May be fatal.

Larkspur - Young plants and seeds cause digestive upset, nervous excitement, be fatal.

Mistletoe - Berries are fatal. Both children and adults have died from eating the berries

lots more here -

www.thehoustoncakeclub.com/poison.htm

Answer 2

Yellow Jasmine flowers and Magnolias are also poisonous when ingested.

Answer 3

Dude...all plants flower for the most part...and like half them are not good to eat....

Castor bean is the most poisonous plant of all of them. It contains Ricin.

Answer 4

Thornapple http://www.botanical.com/botanical/mgmh/...

Monkshood

http://en.wikipedia.org/wiki/Monkshood

Deadly nightshade

http://en.wikipedia.org/wiki/Deadly_nigh...

Answer 5

Dieffenbachia....one of the most poisonous tropical plants....it sap is very poisonous...avoid planting these plants at home tho they might look beautiful...

another one is the oleander....it has beauitifull pink and white flowers...oso poisonous

Answer 6

The castor bean comes to mind as one of the most toxic.

http://en.wikipedia.org/wiki/Castor_bean

Others include many members of the nightshade family.

http://en.wikipedia.org/wiki/Nightshade