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Acetosella

Taxonomic status Accepted

Occurrence status Present

Origin Introduced

Perennial herbs, dioecious or rarely polygamous. Leaves alternate, petiolate, not articulate, often largely basal; ochreas short, tubular, whitish, membranous, glabrous, entire or lacerate at apex, soon disintegrating. Flowers clustered, shortly pedicellate, in slender terminal panicles; perianth segments 6, sepaloid, the inner 3 segments of female flowers rapidly enlarging in fruit, but not or barely exceeding the nut; stamens 6; stigmas 3, peltately attached, fringed. Nut triquetrous, closely enclosed by the fruiting perianth.

4 species from Europe and western Asia, extending into Arctic regions; 1 naturalised in Australia.

Sometimes included in an expanded Rumex(e.g. Schuster et al. 2015).

Source:

Walsh, N.G. (1996). Polygonaceae. In: Walsh, N.G.; Entwisle, T.J., ‍Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae‍, pp. 272–295. Inkata Press, Melbourne.

Updated by: Neville Walsh, 28 Feb. 2018