Australian Tropical Rainforest Plants - Online edition

Hydrocotyle acutiloba (F.Muell.) N.A.Wakef.

Herb (herbaceous or woody, under 1 m tall)
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Herbarium specimen. © DERM

Wakefield, N.A. (1951) The Victorian Naturalist 68: 7.

Common name



Stems stoloniferous (creeping rhizomes) rooting at the nodes. Plant forming a mat.


Petioles 10-30 mm long. Leaf blades ca. orbicular to reniform, 8-17 mm diam., Stipules or stipule-like growths present at the base of each petiole. Stipules orbicular, ca. 1.5 mm diam, becoming quite papery with age. Lamina margins toothed, sometimes ciliate.


Inflorescences axillary or leaf-opposed. Each inflorescence consists of 6-20 flowers opening 2-3 at any time. Peduncles 10-15 mm long. Individual flowers almost sessile or very shortly stalked. Flowers ca.2 mm diam. Tepals ovate or triangular, 0.6-1 x 0.5 mm. Anthers ca. 0.1 mm long, filaments ca. 0.5 mm long. Ovary 0.5-0.8 mm long, laterally compressed, somewhat bilobed. Styles 2, each ca. 0.3 mm long, styles curved inwards towards one another.


Fruits ca. 1.5 x 2 mm, laterally compressed, clothed in short stiff hairs. Fruits usually consist of 2 mericarps each containing one seed. Styles or remnants persistent at the apex.


Features not available.

Distribution and Ecology

An introduced species, occurs in NEQ, CEQ and southwards through south-eastern Queensland, New South Wales and Victoria. Occurs in the understory of  vine forest, closed forest, Eucalyptus forest and swampy places.

Natural History & Notes

Common garden weed

Hydrocotyle hirta var. acutiloba F.Muell., Fragmenta Phytographiae Australiae 4(27): 181(1864), Type: in Australia orientali subtropica septentrionem versus saltem usque ad flumina Fitzroys et Dawsons River extendit.
RFK Code
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