Rumex subg. Acetosa
common dock, common sorrel, garden sorrel, grande oseille, green sorrel, sourdock, tall coneflower
blades in most species sagittate at base, with lobes directed downward, sometimes hastate, cuneate, or rarely almost cordate.
with articulation near middle or in proximal part.
normally unisexual, staminate and pistillate on different plants;
outer tepals normally reflexed towards pedicel, or sometimes spreading;
inner tepals distinctly enlarged, normally longer than (2.5–)3 mm, always distinctly wider and longer than achene, margins entire;
tubercles absent or small and indistinct, recurved, developed only at base of inner tepals.
Rumex subg. Acetosa
Mostly in the Old World; as naturalized nearly worldwide
Species ca. 45 (5 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
