Prostanthera Labill.
Subshrubs, shrubs or small trees, upper calyx lip with no protuberance Prostanthera
Leaves subtending the flowers or cymes much smaller than the lower leaves or reduced to deciduous bracts or absent
Leaves with margins entire
Branches sparsely to densely hairy
Leaves lanceolate or narrow to broadly ovate, if ± circular then more than 15 mm long
Leaves mostly ovate (20)30–50 mm long, obtuse, entire or with a few short teeth; petioles 5–10 mm long. Calyx more than 5 mm long. Corolla white or bluish or rarely pinkish, 12–15 mm long. Flowers in simple terminal racemes; floral leaves reduced to broad obtuse concave bracts enclosing the calyx in the bud stage. Erect shrub 1–2 m high. Nepean River district and lower Blue Mts Open forests, often along creek banks. Fl. spring Prostanthera prunelloides
Leaves lanceolate to ovate. Calyx 2–4 mm long. Corolla 6–12 mm long