Abstract
Preserved rhizomes ofCanna edulis from 5 archaeological sites in the Casma Valley of Peru are illustrated and described. These were identified by their extant surface features and by their starch grains, which are different from those of any other known flowering plant species. Based on radiocarbon assays, these specimens range in date from 2250–295 B.C. Materials used for comparative purposes in this study included a collection of edible canna from the Peruvian archaeological site of Pachacamac and a modern-day specimen. A theory on the place of origin and time of domestication of this species is given in the conclusions of this paper.
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