How did many Native American tribes historically store harvested Wapato corms for their primary winter food supply?

Answer

Harvested in the fall and stored in the cool mud before water froze

The deep historical reliance on Broadleaf Arrowhead as a staple food source is evidenced by the sophisticated methods developed for its preservation, especially for winter sustenance in eastern and central regions. These tribes recognized the reliability of the corms and harvested them typically in the autumn. Crucially, they would store these corms by placing them in the cool mud beneath the water bodies, often just before the water surface froze over. This practice utilized the insulating and preserving properties of the cold mud to maintain the corms until needed, ensuring food security during lean seasons.

How did many Native American tribes historically store harvested Wapato corms for their primary winter food supply?
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