Siphonanthus capitatus Siphonanthus conglobatus Clerodendrum capitatum var. conglobatum Clerodendrum capitatum Clerodendrum conglobatum Clerodendrum obanense Clerodendrum talbotii Clerodendrum capitatum var. talbotii Clerodendrum whitfieldii
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024