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Family Fagaceae

Description: Trees or rarely shrubs, deciduous or evergreen, mostly monoecious.

Leaves alternate (rarely whorled), simple, entire or toothed or lobed; stipules usually shed early.

Flowers usually unisexua. Male flowers in catkins; perianth with 4–7 scales occasionally fused at bas; stamens 4–14(-40); filaments free. Female flowers solitary or clustered, with a basal bract; ovary inferior, usually 3-chambered, each with 2 ovules; styles 3–6.

Fruit a nut, solitary or 2 or 3 clustered, in a cup-like structure of various forms.


Flower
Photo S. Goodwin

Fruit
Photo S. Goodwin

Distribution and occurrence: World: 8 genera, Common in temperate Northern Hemisphere, also high altitude tropics. Australia: numerous species cultivated but rarely naturalised.

External links:
Angiosperm Phylogeny Website (Family: Fagaceae, Order: Fagales)
Wikipedia

Species commonly cultivated include Castanus sativa (Sweet Chestnut), Fagus spp. (beeches), Quercus spp. (oaks)

Text by KL Wilson (Oct 2015)
Taxon concept: R Spencer (1997) Horticultural Flora of SE Australia vol. 2

One genus in NSW: Quercus

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