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Freshly dug sweet potato plants with tubers Hemerocallis tuber roots. A root tuber, tuberous root or storage root is a modified lateral root, enlarged to function as a storage organ. The enlarged area of the tuber can be produced at the end or middle of a root or involve the entire root.
Since the hypocotyl is a region between the stem and the roots, such tubers are variable in their anatomy and growth habits. Thus the roots of Cyclamen graecum grow from the base of the tuber, suggesting it is a stem tuber, whereas those of Cyclamen hederifolium mostly grow from the upper surface of the tuber, suggesting it is a root tuber. [10]
A geophyte (earth+plant) is a plant with an underground storage organ including true bulbs, corms, tubers, tuberous roots, enlarged hypocotyls, and rhizomes.Most plants with underground stems are geophytes but not all plants that are geophytes have underground stems.
The plant has high-climbing, thorny vines. The underground part is a tuber — a swollen, food-storage stem, much like an Irish potato.
In some species (e.g. Cyclamen coum) roots come from the bottom of the tuber, suggesting that it is a stem tuber; in others (e.g. Cyclamen hederifolium) roots come largely from the top of the tuber, suggesting that it is a root tuber. [6] As an example of a combination, juno irises have both bulbs and storage roots. [7]
Tuber crisps (chips) Many species have edible roots, prized for millennia as a reliable source of starch and carbohydrates, even during the winter. Some are edible raw, though are less bitter when cooked. [8] They can be harvested by hand or by treading the mud in late fall or early spring, causing light root tubers to float to the surface. The ...
The subterranean tubers fragment readily when disturbed, and any remaining tuber material can give rise to a new plant. The subterranean tubers can survive for between five and ten years. It can spread at ground level, as a rhizome, and vine stems can form roots at any leaf node in contact with soil, which in turn can produce new subterranean ...
The root of this plant produces a large edible tuber that can be as much as 75 cm (30 in) long and 12 cm (5 in) thick, weighing up to 10 kg (22 lb)., [5] with other sources alleging even larger sizes. [6] This can be roasted and eaten, resembling a sweet potato, young specimens being best as older tubers may be bitter. Other uses for the plant ...