Field and experimental data from studies on Ptilotus pyramidatus 2016-2021

Aims. To understand population trends in the critically endangered Ptilotus pyramidatus in the context of weed threats and weed management, in what at the time was the only known population.
Methods. Fixed quadrat ramet counts were conducted over six years across three treatments: a largely weed-free Reference; a Weedy treatment with high cover of Sparaxis bulbifera; and a Weeded treatment with manual S. bulbifera removal after the first year of monitoring. In a glasshouse, the impact of exposure of P. pyramidatus to the herbicide metsulfuron methyl was tested.