Carya Nutt.

Hickery, Pecan

Greek karya—walnut tree.

Deciduous trees with continuous, solid pith. Bark smooth, grey, peeling and becoming rough with age. Leaves compound, alternate. Leaflets odd numbered, slightly aromatic, generally toothed. Flowers unisexual but both sexes on the same plant. Male flowers in drooping stalked catkins. Females flowers in spikes of 2-10 flowers. Fruits in clusters on hanging stalks, smooth, sometimes angular, the outer coat splitting into 4-6 parts and containing a single nut.

Most species will hybridise readily in cultivation.


Hickory wood is a valuable source of timber in N America.

Continuous pith; clustered catkins.

About 18 species from NE USA to C America & E Asia (3 species).

Flanagan (1987).

Source: Spencer, R. (1997). Juglandaceae. 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     Rosanae
order      Fagales
family       Juglandaceae
Higher taxa
Subordinate taxa
species         Carya illinoinensis (Wangenh.) K.Koch
species         Carya ovata (Mill.) K.Koch