Edit History
Rumex altissimus Alph. Wood [family POLYGONACEAE]
Date Updated: 23 July 2012
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 5,
Names
Rumex altissimus Alph. Wood [family POLYGONACEAE], Class-book Bot. ed., 2, 477. 1847
Treatment Author(s)
Sergei L. Mosyakin
Information
Plants perennial, glabrous, with vertical rootstock. Stems erect, rarely ascending, usually pro-ducing axillary shoots below 1st-order inflorescence or at proximal nodes, 50–90(–120) cm. Leaf blades ovate-lanceolate, elliptic-lanceolate, or lanceolate, 10–15 × 3–5.5 cm, usually ca. 2.5–4 times as long as wide, widest in proximal 1/2, thick, often subcoriaceous, base broadly cuneate, rarely almost rounded, margins entire, flat, apex acute or attenuate. Inflorescences terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense, normally broadly paniculate. Pedicels articulated in proximal 1/3, sometimes almost near base, thick, (2–)3–7(–8) mm, usually approximately as long as inner tepals, occasionally slightly longer or shorter, articulation swollen. Flowers 12–20 in whorls; inner tepals with broadly triangular, ovate-triangular, or broadly ovate-deltoid, 4.5–6 × 3–4.5(–5) mm, base truncate or indistinctly cordate, margins entire, apex acute; tubercles (2–)3, equal or subequal, glabrous or minutely rugose. Achenes brown or dark reddish brown, 2.5–3.5 × 1.8–2.3 mm. 2n = 20.
Phenology
mar-may (spring), jun-aug (summer)
Altitude range
0–1800 m;
Distribution
n MexicoEurope (introduced in DenmarkSwedenUnited Kingdom.USA Ala.USA Ariz.USA Ark.USA Colo.USA Conn.USA Del.USA D.C.USA Fla.USA Ga.USA Ill.USA Ind.USA IowaUSA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Minn.USA Miss.USA Mo.USA Nebr.USA N.H.USA N.J.USA N.Mex.USA N.Y.USA N.C.USA OhioUSA Okla.USA Pa.USA R.I.USA S.C.USA S.Dak.USA Tenn.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.USA Wyo.Canada Ont.
Discussion
The name Rumex britannica Linnaeus was misapplied to this species by C. F. Meisner (1856) and some North American authors.
Some records of Rumex altissimus from Arizona and New Mexico may refer to R. ellipticus. Two reports from New Mexico were based on misidentification of R. hymenosepalus.
Date Updated: 23 July 2012
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 5,
Names
Rumex altissimus Alph. Wood [family POLYGONACEAE], Class-book Bot. ed., 2, 477. 1847
Treatment Author(s)
Sergei L. Mosyakin
Information
Plants perennial, glabrous, with vertical rootstock. Stems erect, rarely ascending, usually pro-ducing axillary shoots below 1st-order inflorescence or at proximal nodes, 50–90(–120) cm. Leaf blades ovate-lanceolate, elliptic-lanceolate, or lanceolate, 10–15 × 3–5.5 cm, usually ca. 2.5–4 times as long as wide, widest in proximal 1/2, thick, often subcoriaceous, base broadly cuneate, rarely almost rounded, margins entire, flat, apex acute or attenuate. Inflorescences terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense, normally broadly paniculate. Pedicels articulated in proximal 1/3, sometimes almost near base, thick, (2–)3–7(–8) mm, usually approximately as long as inner tepals, occasionally slightly longer or shorter, articulation swollen. Flowers 12–20 in whorls; inner tepals with broadly triangular, ovate-triangular, or broadly ovate-deltoid, 4.5–6 × 3–4.5(–5) mm, base truncate or indistinctly cordate, margins entire, apex acute; tubercles (2–)3, equal or subequal, glabrous or minutely rugose. Achenes brown or dark reddish brown, 2.5–3.5 × 1.8–2.3 mm. 2n = 20.
Phenology
mar-may (spring), jun-aug (summer)
Altitude range
0–1800 m;
Distribution
n MexicoEurope (introduced in DenmarkSwedenUnited Kingdom.USA Ala.USA Ariz.USA Ark.USA Colo.USA Conn.USA Del.USA D.C.USA Fla.USA Ga.USA Ill.USA Ind.USA IowaUSA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Minn.USA Miss.USA Mo.USA Nebr.USA N.H.USA N.J.USA N.Mex.USA N.Y.USA N.C.USA OhioUSA Okla.USA Pa.USA R.I.USA S.C.USA S.Dak.USA Tenn.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.USA Wyo.Canada Ont.
Discussion
The name Rumex britannica Linnaeus was misapplied to this species by C. F. Meisner (1856) and some North American authors.
Some records of Rumex altissimus from Arizona and New Mexico may refer to R. ellipticus. Two reports from New Mexico were based on misidentification of R. hymenosepalus.
Date Updated: 23 July 2012
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 5,
Names
Rumex altissimus Alph. Wood [family POLYGONACEAE], Class-book Bot. ed., 2, 477. 1847
Treatment Author(s)
Sergei L. Mosyakin
Information
Plants perennial, glabrous, with vertical rootstock. Stems erect, rarely ascending, usually pro-ducing axillary shoots below 1st-order inflorescence or at proximal nodes, 50–90(–120) cm. Leaf blades ovate-lanceolate, elliptic-lanceolate, or lanceolate, 10–15 × 3–5.5 cm, usually ca. 2.5–4 times as long as wide, widest in proximal 1/2, thick, often subcoriaceous, base broadly cuneate, rarely almost rounded, margins entire, flat, apex acute or attenuate. Inflorescences terminal and axillary, terminal usually occupying distal 1/5–1/3 of stem, rather dense, normally broadly paniculate. Pedicels articulated in proximal 1/3, sometimes almost near base, thick, (2–)3–7(–8) mm, usually approximately as long as inner tepals, occasionally slightly longer or shorter, articulation swollen. Flowers 12–20 in whorls; inner tepals with broadly triangular, ovate-triangular, or broadly ovate-deltoid, 4.5–6 × 3–4.5(–5) mm, base truncate or indistinctly cordate, margins entire, apex acute; tubercles (2–)3, equal or subequal, glabrous or minutely rugose. Achenes brown or dark reddish brown, 2.5–3.5 × 1.8–2.3 mm. 2n = 20.
Phenology
mar-may (spring), jun-aug (summer)
Altitude range
0–1800 m;
Distribution
n MexicoEurope (introduced in DenmarkSwedenUnited Kingdom.USA Ala.USA Ariz.USA Ark.USA Colo.USA Conn.USA Del.USA D.C.USA Fla.USA Ga.USA Ill.USA Ind.USA IowaUSA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Minn.USA Miss.USA Mo.USA Nebr.USA N.H.USA N.J.USA N.Mex.USA N.Y.USA N.C.USA OhioUSA Okla.USA Pa.USA R.I.USA S.C.USA S.Dak.USA Tenn.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.USA Wyo.Canada Ont.
Discussion
The name Rumex britannica Linnaeus was misapplied to this species by C. F. Meisner (1856) and some North American authors.
Some records of Rumex altissimus from Arizona and New Mexico may refer to R. ellipticus. Two reports from New Mexico were based on misidentification of R. hymenosepalus.
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