Clerodendrum inerme (L.) Gaertn.
Gaertner, J. (1788) De Fructibus et Seminibus Plantarum 1: 271.
Clerodendrum, Scrambling; Scrambling Clerodendrum; Harmless Clerodendron; Clerodendron, Harmless
Often grows into a rather untidy vine but frequently flowers and fruits as a shrub about 1-4 m tall. Vine stem diameters to 3 cm recorded.
Twigs, petioles and leaves glabrous or minutely puberulous. Leaf blades about 3-12 x 1-6 cm, punctate or glandular on the lower surface. Petioles about 0.5-1.5 cm long, grooved or channelled on the upper surface. Lateral veins forming loops inside the blade margin. Twigs usually pale-coloured and petioles dark purple.
Pedicels puberulous, about 3-6 mm long. Calyx about 3-6 mm long, glandular, glabrous or puberulous with a few large nectariferous glands on the outer surface, glabrous on the inner surface, lobes minute. Corolla glabrous and glandular outside, tube villous inside, tube cylindrical, about 15-40 mm long, lobes about 3.5-11 mm long. Stamens exserted, filaments about 15-38 mm long, anthers about 2.5-3 mm long. Ovary glabrous, glandular, about 1.5-2 x 1-1.5 mm, style exserted, glabrous, about 25-48 mm long.
Cotyledons thick and fleshy, about 12-20 x 6-9 mm, gradually tapering into the petioles. First pair of leaves opposite, margins entire or with a few teeth. At the tenth leaf stage: leaf blade lanceolate, margin entire or with a few teeth, stem purple becoming pale, terminal bud clothed in pale prostrate hairs. Petiole and midrib purple. Seed germination time 22 to 28 days.
Occurs in WA, NT, CYP, NEQ, CEQ and southwards as far as north-eastern New South Wales. Altitudinal range very small, at or slightly above sea level. Usually grows in close proximity to the sea and is often found near margins or on the margins of beach forest. Also occurs in Asia, Malesia and the Pacific islands.
This species may have medicinal properties.