Australian Tropical Rainforest Plants - Online edition

Motherwellia haplosciadea F.Muell.

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Scale bar 10mm. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO
10th leaf stage. © CSIRO
Vine stem transverse section. © CSIRO

Mueller, F.J.H. von (1869) Fragmenta Phytographiae Australiae 7: 107. Type: In silvis densis montium juxta Rockinghams Bay. Dallachy.


Vine stem diameters to 7 cm recorded. Blaze odour spicy.


Leaves variable, simple or compound with 3 leaflets. Leaf or leaflet blades about 4.5-14 x 2-6 cm, petiole or leaflet stalks from 0.2 to more than 3 cm long. Stipules produced between the petioles and the twig. Twigs emit a spicy odour when broken.


Flowers dark red, about 9-10 mm diam. at anthesis. Calyx cupular, lobes small and inconspicuous. Petals ovate, about 4 x 2 mm. Style and stigma about 1.5 mm long. Stigmas two, small and inconspicuous.


Fruits about 9 x 9 mm. Seeds about 6 x 4 mm. Embryo minute, difficult to find.


Cotyledons ovate, about 9-10 x 7 mm, midrib raised on the upper surface. First leaf simple, cordate, apex apiculate, margin toothed. Second leaf simple or trifoliolate, apices apiculate, margins toothed. At the tenth leaf stage: the base of the compound leaf petiole +/- sheathing the stem. Leaves trifoliolate, middle leaflet blade elliptic, lateral leaflet blades ovate, oblique at the base. Middle leaflet blade longer than the lateral leaflet blades. Midrib raised on the upper surface, margins with a few (1-3) teeth on each side. Seed germination time 39 days.

Distribution and Ecology

Endemic to NEQ. Altitudinal range from 700-1400 m. Grows in well developed upland and mountain rain forests usually on basalt or granite.

Aralia motherwellii F.Muell., Fragmenta Phytographiae Australiae 7: 107(1869).
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