Type of plant
Bulbs or Corms
About this weed
Originally from southern Africa, Romulea flava was probably introduced as an garden plant. It is now occasionally cultivated as an ornamental but has not become naturalised.
Romuleas flava is a cormous, perennial growing to 0.45 m high. It bears yellow flowers in winter and early spring. The fruiting stalk extends following flowering. The corm is annually renewed and reproduction is usually by seed. The seed is then dispersed by water and machinery. The time to first flowering is 2 years and the seedbank persists for up to 5 years. It generally survives fire.
Impact on Bushland
Found in various parts of the Swan Coastal Plain and Jarrah, Tuart and Wandoo woodlands from Perth to Albany. This weed prefers white-grey sand or loam, black sandy clay or granite. It is found on low rises, plains and slopes, winter-wet sites and the edges of firebreaks.
Priority for removal
Spot spray metsulfuron methyl 0.2 g/15 L + Pulse® or 2.5-5 g/ha + Pulse®. Apply just on flowering at corm exhaustion. Read the manufacturers’ labels and material safety data sheets before using herbicides. Optimal months to spray are June and July.
July, August, September
Hussey, B.M.J., Keighery, G.J., Dodd, J., Lloyd, S.G. and Cousens, R.D. (2007) Western weeds. A guide to the weeds of Western Australia, Second Edition, The Weeds Society of Western Australia, Victoria Park, Western Australia.