Rumex conglomeratus Murray

Family: Polygonaceae

Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)

Rumex acutus Smith

Pertinent Common Names (particularly those used in California; go to GRIN for other common names)

clustered dock, green dock

Primary Disseminule Type

fruit (typically with attached perianth)

Description (diagnostics are in brown)

Disseminule is a fruit with persistent tepals (=perianth) and pedicel.

Perianth of two whorls of three tepals each. Outer tepals (may be missing) ca. 1 mm long. Inner tepals adherant to fruit, greenish turning red, typically appearing winged (wings ovate to oblong or lingulate, margins smooth), ± veiny, 2–3(3.2) mm long x 1–1.6(2) mm wide, bearing 3 oblong tubercles (the largest almost as wide as inner tepal, typically an intense or dark red).

Fruit an achene, broadly ovoid with acuminate apex and non-stipitate base, trigonous with acutely-angled margins, 1.5–2 mm long x 1–1.4 mm wide. Surface reddish-brown to dark brown, very shiny, smooth.

Similar Species

Compare to Similar Species of Rumex and Similar Species of Other Polygonaceae.

Risk Assessment (codes in yellow or red indicate cause for concern; assessments are current as of mid-2011; click AUQP, NZBORIC, or NZBPI for access to the most recent versions of these databases and possible assessment changes)