Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Introduced

Trees or shrubs, usually deciduous, monoecious, rarely dioecious; branchlets solid or with partitioned pith. Stipules absent. Leaves alternate, rarely opposite, odd- or even-pinnate; leaflets with glandular scales, often aromatic. Flowers unisexual, arranged in catkins, produced on the previous or current year’s growth. Catkins solitary or clustered, pendulous or erect, elongate. Male flowers subtended by an entire or 3-lobed bract, bracteoles 2 or absent; perianth 2–6-lobed or absent; stamens 3–50, filaments short. Female flowers subtended by an entire or 3-lobed bract, bracteoles 2–3 or absent; perianth 4-lobed or absent; ovary inferior, unilocular at apex, carpels usually 2; style 1, stigmas 2. Fruit a large nut, sometimes fleshy and drupe-like, dehiscent or indehiscent, or rarely a samara; seed 1, lacking endosperm.

Nine genera and c. 60 species mainly from temperate and subtropical regions in the Northern Hemisphere, includes walnuts (Juglans) and pecans (Carya Nutt.), only the former is recorded as naturalised in Australia.

Created by: Andre Messina, 2015-03-10
Updated by: Andre Messina, 2018-11-23
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Fagales
Higher taxa
family Juglandaceae
Subordinate taxa
genus Juglans