The Heartleaf Oxeye (Telekia speciosa) pictured appears to be a varietal. I'm basing that on the petals. It could just be environmental conditions though and not a varietal since there's no information other than the photo.
As for the Brugmansia insignis, where I live they are more commonly cream white or yellowish, so I'd assume that this is a hybrid (again - could be wrong since my botanical strengths tend to be more toward the northeast US). I like these when they are in bloom but I'd probably not have them in the yard anywhere near where the dog would have access to fallen leaves and blooms just because of that toxicity.