(H. calycinum × H. patulum)

Small straggly evergreen shrub less than 1 m tall. Young shoots reddish. Leaves narrowly oblong-ovate, mostly 3-6 cm long. Flowers in clusters of 1-3, deep yellow, 5-6 cm wide. Sepals rather leaflike. Stamens about half as long as the petals; anthers reddish. Styles 5; summer.

Garden origin

Originated from the Moser Nursery, Versailles, France, 1887.

Stamens about half as long as the petals; stems and anthers reddish

Source: Spencer, R. (1997). Clusiaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.