https://www.rhs.org.uk/plants/243397/paeonia-delavayi-var-angustiloba-f-alba-(s)/details
Paeonia delavayi var. angustiloba f. alba (S) | tree peony white-form /RHS
paeonia delavayi
https://www.rhs.org.uk/plants/140824/paeonia-delavayi-persephone/details
Paeonia delavayi 'Persephone' | /RHS
paeonia delavayipersephonerhs