Ptilotus christineae R.W.Davis & Tauss Trichinium pyramidatum Moq.

[2][3] Under Western Australian conservation legislation it has been declared "rare".

Villi minutissime denticulati; articuli eorum plerique suo diametro aliquoties longiores.

[3] (translation) I am here solely because of Drummond's specimens: 99 and 221 (PERTH 782289, MEL 0235383A collected in 1845).

The hairs (villi) are very minutely toothed, and their segments for the most part are several times the length of their diameter.