Überdauerungsorganen

Überdauerungsorganen, also known as persistent organs, are plant structures that survive the winter and continue to grow in the following spring. These organs are crucial for the survival and reproduction of many plant species, particularly those that are perennial or biennial. They are typically found in the underground parts of the plant, such as rhizomes, tubers, and bulbs, which store nutrients and water, allowing the plant to endure harsh winter conditions.

Rhizomes are horizontal stems that grow underground and produce new shoots and roots from their nodes. They are common in grasses and some herbaceous plants. Tubers, on the other hand, are thickened underground stems that store food and water. They are found in plants like potatoes and dahlias. Bulbs are also underground structures, but they consist of a swollen base (the bulb) and a leafy shoot (the scape). The bulb stores nutrients, while the scape produces flowers and seeds. Examples of bulbous plants include tulips and onions.

Überdauerungsorganen play a vital role in the life cycle of plants, enabling them to persist through unfavorable environmental conditions and reproduce successfully in the following growing season. Their ability to store nutrients and water makes them essential for the survival of many plant species.