do u know what's "castor bean plant"?? for me, i am the first time to hear that from the news of arrested of terrorists in Britain and collected a certain amount of castor seeds extract at few days ago.

u know its the extremely poisonous organic in the world!! just 2mg of castor seeds extracts can kill a man!

do u, or yr pets wanna be killed?? tell u that i've found one at the end of the climbing slope to tai peng near the garbage collection point, and one at pak kok too!! the one at tai peng is more than 2m height with flowers and mature seeds; and the one at pak kok is as small as 2 feet. beware dont try to taste it, and dont let yr pet eat the fruits!

Thanks for the warning, farmland!

Yes, this is truly a dangerous plant, but only the seed is poisonous when eaten and chewed. One thousandth of a gram can kill an adult, one seed only might kill a child or a dog, one of the strongest organic toxins known.

The toxin contained is Ricin, featured in this week's CSI episode and used to kill a Bulgarian journalist in London in 1978 by poking him with a poisoned umbrella tip. The current news about the suspected Al-Qaeda terrorists in London killing a policemen mentioned them making Ricin...

Castor bean plants should not be allowed to flower and seed. A good practice seems to be to "nip them in the bud". But I assume the two plants you mentioned are growing wild? Who's in charge of poisonous plants around here?

More great information from Cornell University:
http://www.ansci.cornell.edu/plants/castorbean.html#ricinpois

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farmland, remember to take some pictures of the plant. do we need to hang a notice tag indicate it's toxic? like the fruit plant in the oposite side? :? :bow:

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This is a very common plants in NT, between KCRC East Rail Station from University to FoTan, on the side of the rail track, there a whole bunch of them..I only found out its a lethan plants when it was expose due to Terrorist use.

BTW, I had see an old chinese herbal medicine guy on the train one time, and he was carrying a plant about a foot tall with dirt- he himself ws cover in dirt also, it was I am absolutely sure, Cannabis, or to be more popularly know - [weed], I looked at the guy and laugh and he smile back, no one else in the train knew why I was laughing, properly think I am crazy.

Anyway, I think there are a whole lot of interesting plants around HK..keep on looking....

good for arthritis pain , weed