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Scale bar 10mm. Copyright CSIRO
Vine stem transverse section. Copyright CSIRO
10th leaf stage. Copyright CSIRO
Cotyledon stage, epigeal germination. Copyright CSIRO
Motherwellia haplosciadea F.Muell.
Mueller, F.J.H. von (1869) Fragmenta Phytographiae Australiae 7: 107. Type: In silvis densis montium juxta Rockinghams Bay. Dallachy.
Aralia motherwellii F.Muell., Fragmenta Phytographiae Australiae 7: 107(1869), Type: ?.
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.
Distribution and Ecology