"The plant has a mushroom" should also be valid.
Did you report your answer? That way course contributors can evaluate and add alternative answers.
This make no sense in any language.
Well... It's an odd sentence, but I think it means that a plant is infected by a fungus. Or that the plant is a tree and there is an actual mushroom growing on it (those exist). Or both of these.
Which makes it all the more annoying that " there is a mushroom growing on the plant" was wrong!
Tried "On the plant is a mushroom" also, rejected. Duly reported.
Why is "in the plant is a mushroom" rejected?
I understand that the Finnish course is in beta and that there's still errors, but it's annoying now that duo is enforcing hearts.