Difference between revisions of "Rumex venosus"
Fl. Amer. Sept. 2: 733. 1813.
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|common_names=Veined or veiny dock;wild-begonia;rumex veine | |common_names=Veined or veiny dock;wild-begonia;rumex veine | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W | ||
| + | |label=Weedy | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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name=Rumex venosus | name=Rumex venosus | ||
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|authority=Pursh | |authority=Pursh | ||
|rank=species | |rank=species | ||
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|publication title=Fl. Amer. Sept. | |publication title=Fl. Amer. Sept. | ||
|publication year=1813 | |publication year=1813 | ||
| − | |special status= | + | |special status=Weedy;Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_1034.xml |
|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
|genus=Rumex | |genus=Rumex | ||
Latest revision as of 23:07, 5 November 2020
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.