onisos

Onisos is a genus of plants in the family Asteraceae, commonly known as dandelions. These herbaceous perennial plants are native to Europe and Asia, but have been widely introduced and naturalized in many other parts of the world. The genus is characterized by its distinctive composite flower heads, which are typically yellow, and its achenes, which are small, dry fruits that are dispersed by wind.

The most well-known species within the genus is Taraxacum officinale, commonly referred to simply as dandelion. This species is widely recognized for its bright yellow flowers that bloom in spring and summer, and its toothed leaves arranged in a basal rosette. The plant is known for its deep taproot, which can make it difficult to eradicate.

Dandelions have a long history of use in traditional medicine and as a food source. The leaves are often consumed in salads or cooked as greens, and are a good source of vitamins and minerals. The roasted roots have been used as a coffee substitute, and the flowers can be used to make wine. Despite their widespread presence and perceived status as a weed in many gardens, dandelions are resilient plants with a significant ecological role, providing nectar for pollinators and food for various wildlife.