I've worked with caterpillars that feed on jimsonweed (Datura wrightii) in the western US, and thus knew immediately that the plant they showed was not Datura wrightii. Datura wrightii's leaves are a distinctive gray-green and have smooth or undulate margins (edges), whereas the plant they picked was light green and had what appeared to be lobate or dentate (i.e., pointy) margins. Thus, I was about to write a snarky post saying "HAH! They got it wrong!" wherein I'd proudly show pictures of Datura wrightii (like the one below) and brag about my immense knowledge.
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Datura wrightii, jimsonweed. Picture by poeticdarklove, shared under a creative-commons license.
Unfortunately, however, it turns out that those weird people on the east coast call another plant (Datura stramonium) jimsonweed:
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Datura stramonium, jimsonweed. Photo by urtica, shared under a creative commons license.
And, of course, Datura stramonium's leaves are more of a standard green color, and don't have smooth or undulate margins. In fact, Datura stramonium looks much like the plant Foreman picked.
Oh well, another post down the drain.
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