One node, rooted cutting.

Published as a “suspected cross between H.vitellinoides x H.vitellina“. Seedlings of ‘Noelle’ do confirm that it is a cross, and result in progeny with many more like one parent and many more like the other. The order of the cross is not known since it occurred naturally at the Hawaiian home of longtime horticulturalist Michael Miyashiro. ‘Noelle’ has also been used in further breeding and open pollination selection.

Source: hoyacultivars.org (including photo of the flower)