Erect, viscid annual or biennial (rarely), herb, (0.05-)0.1-0.7 m high. Fl. yellow, Aug to Dec or Feb. Sandy, clay or lateritic soils. Swampy areas, granite outcrops.
Beard’s Provinces: South-West Province.
IBRA Regions: Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions: Dandaragan Plateau, Lesueur Sandplain, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren.
IMCRA Regions: Leeuwin-Naturaliste, WA South Coast.
Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Boyup Brook, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Capel, Chittering, Cockburn, Collie, Cranbrook, Dandaragan, Denmark, Donnybrook-Balingup, Gingin, Gosnells, Harvey, Kwinana, Mandurah, Manjimup, Murray, Nannup, Plantagenet, Rockingham, Serpentine-Jarrahdale, Swan, Wanneroo, Waroona, West Arthur, York.
Alternative Names. Yellow Bartsia, Yellow Glandweed, Sticky Parentucellia.
General Biology. Growth form. Herb. Life form. Annual. Reproduction. Seed. Dispersal. Wind, water machinery, clothing. Seedbank persistence. At least one year.
Notes. Hemiparasitic on the roots of other plants, but can germinate and grow without hosts. Able to colonise a wide range of hosts. Produces numerous small seeds. Seed heads adhere to clothing.
Additional information. Origin. Mediterranean region, western Europe. Similar exotic species. Bartsia trixago, Parentucellia latifolia.
Suggested method of management and control. Remove isolated plants manually before flowering. Try spot spraying with glyphosate 0.5% before flowering. Read the manufacturers' labels and material safety data sheets before using herbicides. For further information consult the Australian Pesticides and Veterinary Medicines Authority to determine the status of permits for your situation or state.
Legend: Y = Yes, regularly, O = Occasionally, U = Uncertain, referred by others but not confirmed.