Common dandelion
Taraxacum officinale
Introduction: Taraxacum officinale, commonly known as the common dandelion, is a perennial herbaceous plant belonging to the Asteraceae family. Widely distributed across temperate regions of the Northern Hemisphere, the dandelion is notorious for its yellow flowers and distinctive seed heads. Despite its classification as a weed in lawns and gardens, the common dandelion holds culinary, medicinal, and ecological significance.
Identification:
1. Morphology:
- Rosette: Dandelions typically form a basal rosette of toothed, lance-shaped leaves.
- Stem: Hollow, leafless stems rise from the center of the rosette, bearing a single yellow flower head.
- Latex: The plant exudes a milky latex when broken.
2. Flowers:
- Inflorescence: Bright yellow composite flowers with ray florets surrounding a central disc.
- Seed Head: The iconic spherical seed head (clock) forms after flowering, dispersing seeds with the aid of the wind.
3. Habitat:
- Common dandelions thrive in various habitats, including lawns, meadows, roadsides, and disturbed areas.
- Adaptable to different soil types but often found in nutrient-rich soils.
Ecological Roles:
1. Pollinator Support:
- Dandelion flowers provide an early-season food source for bees and other pollinators.
2. Soil Improvement:
- The deep taproot of the dandelion helps break up compacted soil and brings nutrients to the surface.
Propagation and Growth:
1. Seed Dispersal:
- Dandelions primarily reproduce through wind-dispersed seeds.
- The fluffy "parachute" of seeds aids in dispersal over long distances.
2. Perennial Nature:
- The perennial nature of dandelions allows them to persist in landscapes, returning each year from the taproot.
Control in Lawns and Gardens:
1. Manual Removal:
- Hand-pulling is a common method for controlling dandelions in gardens.
- Ensure complete removal of the taproot to prevent regrowth.
2. Herbicides:
- Selective herbicides targeting broadleaf weeds can be used for dandelion control in lawns.
- Organic and chemical options are available, with consideration for environmental impact.









