This is very close to an example in the GM's book for Burning Wheel (which is called the Adventure Burner) - that is an example of testing Trial-by-combat-wise to establish that there is a custom of drinking a toast before a duel, thus making it possible to put poison in one of the cups - with a failure being that each also drinks from the other's cup, making the poisining trick much harder.Wizard Player: "Hmm. What does my character know about yellow musk creepers? Can I make a Nature check?" (asking for a pile-on check)
DM: (instead of saying No outright, I present stakes) "Sure you can, but your Nature check will represent hands-on study of a yellow musk creeper which you dissected during your arcane studies. If you roll low, that means during your studies you accidentally cut open its musk sac and have suffered a low-grade infection and chronic cough since then, meaning you'll be more susceptible to its attacks and musk than normal. Would you like to roll?" (I was thinking disadvantage vs. musk WIS save and vulnerability to psychic damage delivered by the yellow musk creeper)
Wizard Player: "Uhhh, no. It's not worth the risk. I listen to my lizardman friend."
The difference is that, in the BW example, it is the player who puts forward the suggestion about a toasting practice being associated with duels, because it is the player who wants to poison one of the duellers. Whereas in @Quickleaf's example it is the GM who is tasked by the player with on a success, tell me something good/useful about yellow musk creepers.
While those differences of allocation of narrative responsibility are not trivial, I don't think we would want them to obscure underlying similarities of resolution process.
A separate question to @Quickleaf - the wizard player faces stakes, the other player doesn't sem to have done so. Is this being done on a "first in, best dressed" approach (which I have no objections to provided there's not a dominant personality who's always first in), or on a "spoltlight sharing" approach, or some other way? (Or am I just misreading the example?)