Coleus diversus (S.T.Blake) P.I.Forst. & T.C.Wilson
Paton, A.J. et al (2019) Phytokeys 129: 41.
Usually flowers and fruits as a shrub about 1-2 m tall.
Leaf blades about 2.5-6 x 3-5.5 cm, upper and lower surfaces clothed in short glandular and longer non-glandular hairs, margin with 10-15 rounded teeth on each side, petioles about 1.2-2.5 cm long. Midrib and veins depressed on the upper surface of the leaf blade. Twigs square in cross section. Leaves emit a strong odour when crushed, the odour resembling that of Eucalyptus or Tea Tree (Melaleuca spp.) Oil.
Flowers borne in elongated fasciculate cymes or panicles. Pedicels about 5 mm long. Flowers about 10 mm long, very zygomorphic. Calyx clothed in glandular and non-glandular hairs, and orange glands. Corolla 5-lobed, the lower lobe cup-shaped with white markings and orange glands. Anther filaments about 6 mm long. Style about 6 mm long, stigma bilobed.
Cotyledons about 7 x 10 mm, minutely hairy, petioles about 5-6 mm long. First pair of leaves about 19-16 mm, petioles about 14 mm long, margin crenate or almost smooth. At the tenth leaf stage: leaf blade clothed in hairs on both the upper and lower surfaces, small spherical, cream or orange glands visible with a lens. Margin with 5 or 6 large rounded teeth on each side. Stem hairy and square in transverse section. Seed germination time 15 days.
Plectranthus diversus S.T.Blake, Contributions from the Queensland Herbarium 9: 20-22 (1971). Type: Australia, Queensland, Spring Creek near Bowen (cultivated at The Gap), Brisbane., Oct. 1963, S.T.Blake 22128 (holotype: BRI). Plectranthus sp. Font Hills (B.Gray 6336), Provisional HISPID phrase name.