Type:"Victoria: 3.2 km west of Diapur on Nhill-Miram Road, 36° 19’ 01” S., 141° 25’ 02” E., K. Rule 2508, 15 viii 2008 (holotype: MEL 2419936; isotypes: AD, CANB, NSW)."
APC Dist.:Vic
Etymology:"The subspecific epithet is derived from the Latin gratis ‘pleasing’ which alludes to elegant appearance of the taxon."