Delonix Regia, or royal poinciana, has mildly toxic flowers/leaves. Probably ok with the branches though. Just make sure the newly cut branches don’t touch soil because poinciana are legumes and will readily root, and therefor grow new toxic parts.
Unable to get. Tree is ’buried’ under vines currently. The branches were accessible only because they were growing over my fence. I already stripped and trimmed the branches I got.