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are jimson weed seeds harmful

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Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Similarly, you ask about touching versus eating. Almost all the references were about ingested material. Still, the wording in Erowid is “These toxins are easily absorbed from mucous membranes and the GI tract”. The implication is that if plant material touches a mucous membrane (or a cut) – some of the toxins could be absorbed.

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Is Texas Mountain Laurel Honey Toxic in Fulshear, TX?
March 11, 2012 – Toxicity of Texas Mountain Laurel HONEY I know the seeds and leaves of the Tx Mountain Laurel are toxic. But, is honey that comes from the Mountain Laurel toxic too? I heard that it is, but can’.
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Mr Smarty Plants had two other questions in the database about Jimsonweed. This question discusses its invasiveness and that this can be controlled by deadheading [Likely the one you read, but deadheading is sounding very much like a good practice!] and this question has similar information towards side effects and dangers of Datura spp.

As a little bit of direction: it can be fatal. This reference from MedLinePlus describes the symptoms of Jimson weed poisoning, and this reference from the CDC describes Poisoning From a Homemade stew, happily all in the later reference survived this event. The Erowid references gives the toxins in Jimson Weed as tropane belladonna alkaloids which possess strong anticholinergic properties. They include: hyoscyamine (leaves, roots, seeds), hyoscine (roots); atropine (d,l-hyoscyamine) and scopolamine (l-hyoscine). The same article discusses toxicology. It noted the highest concentration occurred in the seeds and that near-toxic levels of these may be found in an amount on the order of 50-100 seeds. This seems more in agreement with the statement from the North Carolina Poisonous Plants Database which says for Datura stramonium that it is “Toxic only if large quantities are eaten.”