Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Annual or perennial herbs; stems 4-angled. Leaves and stipules more or less equal, in whorls of 4–9(–12). Inflorescences usually upper-axillary cymes, sometimes reduced to single flowers. Flowers bisexual; calyx usually absent; corolla rotate, 4-lobed, often hairy, white or yellow; corolla-tube very short; stamens 4, with filaments scarcely fused to corolla-tube, anthers lacking appendages; ovary inferior, 2-celled, ovules 1 per cell, style 2-lobed, stigmas capitate. Fruit dry, 2-lobed, breaking freely into 2 mericarps.

About 400 species, cosmopolitan; 29 species in Australia, 20 native.

Source: Jeanes, J.A. (1999). Rubiaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2019-03-04
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