Click on images
Scale bar 10mm. Copyright CSIRO
Flower. Copyright CSIRO
Leaves and fruit. Copyright Barry Jago
Cotyledon stage, semi-hypogeal germination. Copyright CSIRO
10th leaf stage. Copyright CSIRO
Haplostichanthus johnsonii F.Muell.
Mueller, F.J.H. von (1890) The Victorian Naturalist 7: 180. Type: Mount Bartle-Frere; Stephen Johnson.
Monostichanthus johnsonii F.Muell., Descriptions of new Australian Plants, with occasional other annotations: ?(1891), Type: ?.
Shrub to 4 m tall.
Oak grain in the twigs. Leaf blades about 4-9 x 1-3 cm. Petiole very short (about 0.2-0.3 cm long). Lateral veins forming loops inside the blade margin. Oil dots visible with a lens. Twig bark strong and fibrous when stripped. Young twigs and terminal buds hairy.
Flowers small, about 6-10 mm diam. Sepals about 1.5 x 1.5 mm. Outer petals triangular, about 4-5 x 3.5 mm, wide spreading. Inner petals about 5 x 2-2.5 mm, joined at the apex to form an arch over the stamens and ovaries. Stamens about 30. Ovaries about six. Ovules 2 per ovary. Stigmas globose, sessile on the ovaries.
First pair of leaves shortly petiolate, alternate, ovate, margins smooth, sparsely pubescent. Small oil dots visible with a lens. Stem clothed in yellowish or pale brown hairs. At the tenth leaf stage: stem somewhat zig-zagged. Leaves elliptic to ovate, apex obtuse, base cordate to oblique. Leaf blades about 70-75 x 30 mm, petioles somewhat swollen, about 3.5 mm long. Oil dots numerous, very small, visible with a lens. Lateral veins form a double series of loops inside the blade margin.
Distribution and Ecology
Endemic to NEQ, the collections to date indicate that it is restricted to the foothills of Mt Bartle Frere, the base of the Bellenden Ker Range. Altitudinal range from near sea level to 700 m. Usually grows in lowland rain forest.
Food plant for the larval stages of the Green Spotted Triangle Butterfly. Sankowsky & Neilsen (2000).
Shrub (woody or herbaceous, 1-6 m tall)