Erect, perennial herb <1.5m high. Ridged & bristly stems & a creeping rootstock. Dark green leaves, coarsely-toothed & covered in stinging hairs. Long tassel-like clusters of greenish-yellow flowers (Mar-May).
Gardens, waste places, riverbeds, coastal cliffs, rough grasslands. Prefers damp areas of high fertility.
Seed dispersed by birds. Spread locally by creeping roots.
Colonises a wide range of habitats. Stinging hairs restrict recreational use of infested areas; sting causes an itching & burning sensation that may last for several days. Pollen may cause hayfever.
Avoid areas of broken soil or bare ground. Establish turf cover to prevent re-establishment.
1. Grub out small plants – handle with care!
2. Weed wipe during active growth (300ml glyphosate/1L).
3. Spray (120ml Tordon Gold/10L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.