Hibbertia calycina

Shrubs to c. 1 m high, with erect pubescent branches, with many short shoots. Vestiture of usually short simple tubercle-based hairs, rarely bifurcate or few-branched. Leaves linear, 3.5–15 mm long, 0.5–0.9 mm wide, acute with central ridge continued into apex; upper surface with scattered hairs often reduced to tuberculate bases; petiole 0.3–0.9 mm long; margins broad, revolute, raised above and touching broader, glabrous central ridge below. Flowers sessile, terminal mainly on short shoots, reduced leaves and 1 triangular flat bract 1.4–2.2 mm long; sepals 4.4–6.8 mm long, unequal, puberulous to tomentose; petals usually oblong-obovate, 5.6–8.5 mm long, bright to deep yellow; stamens 8–18 in one cluster; filaments free to slightly connate basally; carpels 2, tomentose to villous. Flowers Sep.–Nov.