Plants of South Eastern New South Wales
Hieracium murorum
Common name
Wall Hawkweed
Family
Asteraceae
Where found
Weed. Blue Mountains and north.
Notes
Introduced perennial herb to 0.7 m high. Spreads via creeping aboveground stems (stolons) and can create a dense mat of vegetation that practically eliminates all other ground vegetation. Stems hairy, with stellate, glandular, and simple hairs. Leaves in a basal rosette and sometimes alternating up the stems, 5–11 cm long, 25–45 mm wide, often purple mottled, margins toothed. upper surface darker than the lower, both surfaces with long white simple hairs, denser on the undersurface and along the veins and margins, tips more or less blunt with a small abrupt point. Flower heads yellow, 20-35 mm in diameter, with 30-50+ 'petals'. Flower heads below the 'petals' bell-shaped to top-shaped. Bracts appressed to the flower heads below the petals 18–21. Flower heads in a loose open cluster of 5–8 flowers. Flowers October – April.
General Biosecurity Duty all NSW (as Pilosella species). General Biosecurity Duty with additional restrictions in all NSW (as pilosella species). Noxious weed Vic (as Hieracium spp.).
PROHIBITED MATTER in NSW: If you see this plant report it to the NSW Invasive Plants & Animals Enquiry Line 1800 680 244.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Hieracium~murorum (accessed 13 April 2021)
Description partly based on Flora of North America: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220006374 (accessed 13 April 2021)
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