Cycas (family Cycadaceae) A genus of stout trees which differ from other Cycadaceae in that the female plants do not bear cones, but carry ovules (and seeds) on massive, terminal, leaf-like sporophylls, which is a primitive feature. There is a terminal crown of long, finely pinnate leaves, in which the leaflets are flat. They are dioecious. A few yield edible starch (sago) from the central pith, nowadays used only as a famine food. There are 16–20 species, occurring from Madagascar and tropical Asia to the Pacific islands and Australia.
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