This family contains buckwheat, sorrel (but not wood sorrel[?]), rhubarb, and knotgrass[?]. It is named for the shape of the seed; that of rhubarb, for example, has a triangular cross-section.
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... Mawson - Australian explorer of Antarctica
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Fridtjof Nansen, (1861-1930), arctic explorer, scientist and international statesman
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Francisco de Orellana - firs ...