[Name of Thistle.—"Narandera."— Baron F. Von Mueller identifies your specimen as Kentrophyllum Lanatum. It is an annual, and can be destroyed by preventing the plants seeding, either by cutting or pulling up by the roots before the seeds are formed. The plants should be gathered into heaps and destroyed, or they may ripen the seeds if left on the ground.
Kentrophyllum Lanatum
Letter not found. The text given here is from 'The Yeoman. Answers to correspondents', Australasian (Melbourne), 25 November 1893, p. 933. Assuming that M's letter would have been published in the next available issue in this weekly newspaper, it is dated to 17 November 1893 as the likely earliest date it would have been sent.
Please cite as “FVM-93-11-17,” in Correspondence of Ferdinand von Mueller, edited by R.W. Home, Thomas A. Darragh, A.M. Lucas, Sara Maroske, D.M. Sinkora†, J.H. Voigt† and Monika Wells accessed on