Juglandaceae (Walnut and Pecan family)
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> Spermatophyta (seed plants) > Angiospermae (flowering
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Eurosid I > Order: Fagales
Eight genera and about 50 species (North temperate regions,
South America, Malesia), of which three genera and nine species are cultivated
in southern Africa including Walnut Juglans regia
and Pecan Carya illinoinensis.
Genera cultivated in southern Africa
List from Glen (2002). Species is listed for genera with
only one species cultivated in the region.
Two species cultivated: Pterocarya fraxinifolia (Caucasian wing-nut)
and Pterocarya stenoptera (Chinese wing-nut).
Twenty-one species (Northern Hemisphere and South America), of which six are
cultivated in southern Africa, including the
Walnut Juglans regia.
Carya illinoinensis (Pecan)
Indigenous from south-eastern USA through to eastern Mexico. Pecans
were harvested by indigenous North American tribes well before the
arrival of European settlers in the 1500's. They were introduced to
Spain in the 1600's and are now grown in all temperate regions of the
world although the USA remains the main producer. Pecans have a high fat
content (about 71%) but most of it is unsaturated (the more healthy
type). They are an excellent source of phosphorus, thiamin, copper and
zinc, and a good source of iron and potassium.