Alnus incana (L.) Moench

Grey Alder

Tree to 20 m or so tall. Bark smooth, grey. Young shoots softly hairy. Leaves ovate, mostly 4-10 cm long, dull grey-green above, greyish beneath with a velvety layer of hairs, pointed at tip, rounded to broadly wedge-shaped at base. Flowers winter to early spring. Fruits in groups of 4-8 with stalks absent or very short.

Europe, Caucasus

VIC: Melbourne (Royal Botanic Gardens Victoria (Melbourne Gardens), 10 m tall in 1978).


A. hirsuta (Spach) Rupr. from E Asia is occasionally available; it is similar but has more or less round leaves and brownish hair on the new growth.

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

Alnus incana 'Aurea'

Twigs and leaves mostly yellow, soft hairy below. Young catkins orange.

Alnus incana 'Laciniata'

Leaves deeply cut, lower leaf surface soft hairy. Europe c. 1861.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Fagales
family       Betulaceae
genus        Alnus Mill.