J. Adelaide Bot. Gard. 18: 150 (1998) APNI
Threat status:Victoria: vulnerable (v)
Dense shrub up to 80 cm high; branches densely pubescent to villous. Vestiture of tubercle-based stellate and long simple hairs. Leaves obovate to obolanceolate, 4.1–9.2 mm long, 1.4–4.8 mm wide, pubescent to glabrescent above, with mainly simple hairs, or just persistent tubercle-bases, stellate-pubescent below; petiole 0.3–0.8 mm long; apex truncate and ±emarginate, rarely rounded; margins narrow, revolute, distant from the scarcely raised central vein. Flowers on peduncles 2.5–6.1 mm long, terminal on long and short branches, subtended by 1 linear bract, 1.6–2.1 mm long, usually less than half the length of sepals; sepals 4–4.5 mm long, unequal, stellate-tomentose with scattered, much longer simple hairs; petals broadly obovate-cuneate, 5–8.6 mm long, yellow; stamens 10–12(–15), filaments usually connate for about half their length; carpels 2, stellate-pubescent. Flowers Sep.–Oct.
Restricted to coastal ranges in the south-eastern corner of Australia (i.e. Howe Range in Victoria), growing in open Eucalyptus sieberi, and in Angophora forest.
Closely resembles Hibbertia hirticalyx and may be better treated at subspecific rank within that species. However, vegetatively H. notabilis closely resembles H. aspera (but readily distinguished from that species by the greater number of stamens), and is somewhat intermediate between H. aspera and H. hirticalyx.