Is this flowey from undertale?

i don't know of any floweys that aren't from undertale, so i don't see how this flowey could be any different

But the thing is I don't know if this flower is even flowey from undertale. I don't even know if it's name is flowey. All I know is that every single person I've ever talked to has told me "Yes, this is flowey from undertale" but is it really?