Clethra delavayi Franch.

Deciduous shrub. Young shoots with star-shaped down. Leaves to 12 cm long, lanceolate to elliptic-oblanceolate, downy below. Flowers with petals 8-10 mm long. Sepals oval, slightly pointed.

W China

Sepals becoming red, leaves downy below.


Other deciduous species are occasionally cultivated.

C. alnifolia L., Sweet Pepper-bush from N America has young shoots with a dense, close star-shaped down and leaves with fewer than 10 vein pairs.

C. barbinervis Siebold & Zucc. from Japan, China and Taiwan has leaves with 10-15 vein pairs, and petals 4-6 mm long.

C. fargesii Franch. from C China has leaves with mostly more rounded leaves and more than 15 vein pairs.

Source: Spencer, R. (1997). Clethraceae. 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.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Asteranae
order      Ericales
family       Clethraceae
genus        Clethra L.