Philadelphus lewisii var. platyphyllus
Philadelphus trichothecus Philadelphus oreganus Philadelphus oreganus Philadelphus zelleri Philadelphus cordifolius Philadelphus cordatus Philadelphus columbarius Philadelphus insignis Philadelphus globosus Philadelphus fremontii Philadelphus billiardii Philadelphus lewisii subsp. californicus Philadelphus lewisii subsp. gordonianus Philadelphus californicus Philadelphus lewisii var. californicus Philadelphus lewisii var. gordonianus Philadelphus platyphyllus Philadelphus helleri Philadelphus intermedius Philadelphus angustifolius Philadelphus columbianus Philadelphus gordonianus var. columbianus Philadelphus lewisii var. angustifolius Philadelphus lewisii var. intermedius Philadelphus oblongifolius Philadelphus lewisii var. pygmaeus Philadelphus lewisii var. ellipticus Philadelphus lewisii var. oblongifolius Philadelphus lewisii var. parvifolius Philadelphus gordonianus var. californicus Philadelphus columbianus Philadelphus californicus Philadelphus lewisii var. platyphyllus Philadelphus confusus Philadelphus grahamii Deutzia californica Philadelphus gordonianus Philadelphus lewisii var. helleri Philadelphus lewisii var. parvifolius
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024