Stylidium tenerum, the
swamp triggerplant, is a dicotyledonous plant that belongs to the genus
Stylidium (family Stylidiaceae) that was described by Curt Polycarp Joachim Sprengel in 1826. Robert Brown had described this species in 1810 under the name
S. tenellum, a name which had already been used for another species in 1805 by Olof Swartz. To add to the confusion, Rica Erickson had described and illustrated this taxon in 1958 under the name
S. uliginosum
(Wikipedia)