Difference between revisions of "Sisymbrium polyceratium"
Sp. Pl. 2: 658. 1753.
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|place=2: 658. 1753 | |place=2: 658. 1753 | ||
|year=1753 | |year=1753 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=I | ||
| + | |label=Introduced | ||
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|basionyms= | |basionyms= | ||
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|name=Chamaeplium polyceratium | |name=Chamaeplium polyceratium | ||
|authority=(Linnaeus) Wallroth | |authority=(Linnaeus) Wallroth | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Brassicaceae;Brassicaceae tribe Sisymbrieae;Sisymbrium;Sisymbrium polyceratium | |hierarchy=Brassicaceae;Brassicaceae tribe Sisymbrieae;Sisymbrium;Sisymbrium polyceratium | ||
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|elevation=0-200 m | |elevation=0-200 m | ||
|distribution=Pa.;Tex.;Europe;w;c Asia;nw Africa. | |distribution=Pa.;Tex.;Europe;w;c Asia;nw Africa. | ||
| + | |introduced=true | ||
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Sisymbrium polyceratium | name=Sisymbrium polyceratium | ||
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|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Introduced |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_1146.xml |
|tribe=Brassicaceae tribe Sisymbrieae | |tribe=Brassicaceae tribe Sisymbrieae | ||
|genus=Sisymbrium | |genus=Sisymbrium | ||
Latest revision as of 22:30, 5 November 2020
Annuals; (densely leafy throughout); often glabrous. Stems (simple or few to several from base), erect or ascending to subprostrate, branched distally, 1–5(–7) dm, glabrous. Basal leaves (soon withered); initially rosulate; petiole (1–)2–5(–6.5) cm; blade oblanceolate to lanceolate (in outline), 2–7(–10) cm × 10–30(–45) mm, margins sinuate- or runcinate-pinnatifid to coarsely dentate; lobes 3–6 on each side, often triangular, slightly smaller than terminal lobe, margins dentate or subentire. Cauline leaves (sometimes bracts, several), similar to basal, (shortly petiolate); blade margins dentate or subentire, (surfaces glabrous or sparsely puberulent at and near margin). (Inflorescences 2–4(–6)-fasciculate, or flowers solitary and axillary, bracteate throughout.) Fruiting pedicels ascending to erect, stout, narrower than fruit base, 0.5–1(–2) mm. Flowers: sepals erect, oblong, 1–1.5 × 0.3–0.5 mm; petals spatulate, 1.5–2 × 0.4–0.6 mm, claw 0.6–1 mm; filaments (erect, yellowish), 1.2–1.7mm; anthers ovate, 0.3–0.5 mm. Fruits (erect to ascending), subulate-linear, recurved, straight, slightly torulose, stout (widest at base), 1–2(–2.3) cm × 0.9–1.7 mm; valves usually glabrous, rarely puberulent; ovules 20–44(–54) per ovary; style 0.5–1 mm; stigma slightly 2-lobed. Seeds 0.7–1 × 0.4–0.5 mm. 2n = 28.
Phenology: Flowering Mar–Jun.
Habitat: Waste grounds, disturbed sites, roadsides
Elevation: 0-200 m
Distribution
Introduced; Pa., Tex., Europe, w, c Asia, nw Africa.
Discussion
Selected References
None.