Rumex L.

Leaf bases cordate, cuneate or rounded. Inner perianth segments leathery, often toothed, not inflated Rumex
Inner perianth segments with long teeth, with or without a tubercle
Flower clusters with linear leaves longer than the flowers
Flowers 2–8 in each whorl arranged in a spreading panicle. Perianth valves narrow-triangular, c. 2 mm wide with a tooth on each side at the base, acuminate. Basal leaves narrow-oblong. Cumberland Plain. Uncommon Rumex stenoglottis
Flowers numerous in each whorl arranged in an erect panicle. Perianth valves triangular, 2–3 mm long, acuminate, reticulate, with 2 straight rigid teeth on each side. Leaves linear to lanceolate. A native of inland NSW and recorded from Kurrajong. Shiny Dock Rumex tenax