Heritage varieties refer to traditional plant breeds that have been cultivated for many generations, often passed down through families or communities. These varieties are typically open-pollinated, meaning they can reproduce naturally and maintain their characteristics over time. They are valued for their unique flavors, resilience, and adaptability to local growing conditions. Many heritage varieties are at risk of disappearing due to the dominance of commercial hybrids and genetically modified organisms. Efforts to preserve these plants often involve seed banks and community gardens, which help maintain biodiversity and promote sustainable agriculture. Examples include heirloom tomatoes and heritage wheat.