Swollen regions of underground stems that store starch are

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Swollen regions of underground stems that store starch are called tubers, such as potatoes. Stomata are the tiny openings on leaves for gas exchange, not related to storage. Parasites can exist as swelling plants, but not all swelling plants are parasites. Rhizomes are also underground stems, but they grow horizontally and send out roots and shoots. Tendrils are thin, coiling structures used for support and climbing, not related to storage.

Swollen Regions of Underground Stems That Store Starch Are