Invasive Plant Details
Back to Full ListOrange Hawkweed
Latin Name: Pilosella aurantiaca (formerly Hieracium aurantiacum)
Identification
Flower: Bright orange, dandelion-like flower heads that bloom from late spring through summer.
Leaves: Basal rosettes of narrow, hairy, dark green leaves.
Stems: Erect, slender, and hairy, growing up to 30 cm tall.
Growing Environment: Prefers well-drained soils in meadows, pastures, and disturbed areas.
Growth Habit: A perennial herb that spreads through both seeds and creeping stolons, forming dense patches. It often creates low, sprawling mats of bright orange flowers in grassy habitats. In situ, orange hawkweed appears as a low-growing plant with vibrant orange flowers, often in meadows or along roadsides.
Impacts on Environment
Impacts: Highly invasive in meadows and pastures, where it forms dense mats that displace native vegetation.
