Difference between revisions of "Rumex venosus"
Fl. Amer. Sept. 2: 733. 1813.
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|habitat=Sand dunes, sandy and gravelly riverbanks and slopes, deserts, grasslands 200-1500 m | |habitat=Sand dunes, sandy and gravelly riverbanks and slopes, deserts, grasslands 200-1500 m | ||
|distribution=Alta.;Man.;Sask.;Ariz.;Calif.;Colo.;Idaho;Iowa;Kans.;Minn.;Mont.;Nebr.;Nev.;N.Mex.;N.Dak.;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo. | |distribution=Alta.;Man.;Sask.;Ariz.;Calif.;Colo.;Idaho;Iowa;Kans.;Minn.;Mont.;Nebr.;Nev.;N.Mex.;N.Dak.;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo. | ||
| − | |discussion=<p>Rumex venosus is a distinctive species rarely confused with any other members of the genus. However, I have seen herbarium specimens of it misidentified as R. hymenosepalus, and vice versa.</p> | + | |discussion=<p><i>Rumex venosus</i> is a distinctive species rarely confused with any other members of the genus. However, I have seen herbarium specimens of it misidentified as <i>R. hymenosepalus</i>, and vice versa.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1813 | |publication year=1813 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_1034.xml |
|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
|genus=Rumex | |genus=Rumex | ||
Revision as of 17:35, 18 September 2019
Plants perennial, glabrous or nearly so, with creeping rhizomes. Stems ascending or, rarely, erect, usually producing axillary shoots near base, (10–)15–30(–40) cm. Leaf blades ovate-elliptic, obovate-elliptic, or ovate-lanceolate, (2–)4–12(–15) × 1–5(–6) cm, subcoriaceous, base narrowly to broadly cuneate, margins entire, flat or slightly undulate, apex acute or acuminate. Inflorescences terminal and axillary, usually occupying distal 2/3 of stem/shoot, usually dense, or interrupted in proximal part, broadly paniculate. Pedicels articulated near middle, filiform or slightly thickened, (8–)10–16 mm, articulation distinct, slightly swollen. Flowers 5–15 in whorls; inner tepals distinctly double-reticulately veined, orbiculate or reniform-orbiculate, 13–18(–20) × (20–)23–30 mm, base deeply emarginate or cordate, margins entire, apex rounded, obtuse, rarely subacute, with short, broadly triangular tip; tubercles absent, occasionally very small. Achenes brown or dark brown, 5–7 × 4–6 mm. 2n = 40.
Phenology: Flowering spring–early summer.
Habitat: Sand dunes, sandy and gravelly riverbanks and slopes, deserts, grasslands 200-1500 m
Distribution
Alta., Man., Sask., Ariz., Calif., Colo., Idaho, Iowa, Kans., Minn., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tex., Utah, Wash., Wis., Wyo.
Discussion
Rumex venosus is a distinctive species rarely confused with any other members of the genus. However, I have seen herbarium specimens of it misidentified as R. hymenosepalus, and vice versa.
Selected References
None.