Prostanthera ovalifolia

Erect, spreading to dense shrub, 1–4 m high, not aromatic or only slightly so; branches 4-angled, moderately covered with short, curled hairs, at least on the ridges, sparsely glandular. Leaves narrow-ovate to broad-ovate, 5–40 mm long, 3–12 mm wide, mid to dark green, paler below, glabrous except for sparsely hairy midvein below, densely covered in subsessile glands, base attenuate, margin entire to slightly and irregularly sinuate or lobed in juvenile plants, apex obtuse to subacute; petiole 1–6 mm long. Inflorescence a terminal panicle or raceme; bracteoles not persistent, 1–2 mm long and 0.2–0.3 mm wide. Calyx 2–3.5 mm long, tube 1–2.5 mm long, adaxial lobe 0.5–1.5 mm long (enlarged in fruit); corolla mauve or deep blue-purple, rarely white, 6–18 mm long; anthers without appendages or to c. 0.5 mm long. Flowers Aug.–Nov.