Difference between revisions of "Dysphania ambrosioides"
Ukrayins’k. Bot. Zhurn., n. s. 59: 382. 2002.
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|common_names=Mexican-tea;wormseed | |common_names=Mexican-tea;wormseed | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W | ||
| + | |label=Weedy | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Chenopodium ambrosioides | |name=Chenopodium ambrosioides | ||
|authority=Linnaeus | |authority=Linnaeus | ||
| + | |rank=species | ||
|publication_title=Sp. Pl. | |publication_title=Sp. Pl. | ||
|publication_place=1: 219. 1753 | |publication_place=1: 219. 1753 | ||
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|name=Chenopodium ambrosioides var. suffruticosum | |name=Chenopodium ambrosioides var. suffruticosum | ||
|authority=(Willdenow) Ascherson & Graebner | |authority=(Willdenow) Ascherson & Graebner | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Teloxys ambrosioides | |name=Teloxys ambrosioides | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Chenopodiaceae;Dysphania;Dysphania sect. Adenois;Dysphania ambrosioides | |hierarchy=Chenopodiaceae;Dysphania;Dysphania sect. Adenois;Dysphania ambrosioides | ||
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name=Dysphania ambrosioides | name=Dysphania ambrosioides | ||
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|authority=(Linnaeus) Mosyakin & Clemants | |authority=(Linnaeus) Mosyakin & Clemants | ||
|rank=species | |rank=species | ||
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|publication title=Ukrayins’k. Bot. Zhurn., n. s. | |publication title=Ukrayins’k. Bot. Zhurn., n. s. | ||
|publication year=2002 | |publication year=2002 | ||
| − | |special status= | + | |special status=Weedy;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_490.xml |
|genus=Dysphania | |genus=Dysphania | ||
|section=Dysphania sect. Adenois | |section=Dysphania sect. Adenois | ||
Latest revision as of 22:58, 5 November 2020
Plants annual. Stems erect to ascending, much-branched, 3–10(–15) dm, ± glandular-pubescent. Leaves aromatic, distal leaves sessile; petiole to 18 mm; blade ovate to oblong-lanceolate or lanceolate, proximal ones mostly lanceolate, 2–8(–12) × 0.5–4(–5.5) cm, base cuneate, margins entire, dentate, or laciniate, apex obtuse to attenuate, copiously gland-dotted (rarely glabrous). Inflorescences lateral spikes, 3–7 cm; glomerules globose, 1.5–2.3 mm diam.; bracts leaflike, lanceolate, oblanceolate, spatulate, or linear, 0.3–2.5 cm, apex obtuse, acute, or attenuate. Flowers: perianth segments 4–5, connate for ca. 1/2 their length, distinct portion ovate, rounded abaxially, 0.7–1 mm, apex obtuse, glandular-pubescent, covering seed at maturity; stamens 4–5; stigmas 3. Achenes ovoid; pericarp nonadherent, rugose to smooth. Seeds horizontal or vertical, reddish brown, ovoid, 0.6–1 × 0.4–0.5 mm; seed coat rugose to smooth.
Phenology: Fruiting summer–fall.
Habitat: River bottoms, dry lake beds, flower beds, waste areas
Elevation: 0-700 m
Distribution
Ont., Que., Ala., Ariz., Ark., Calif., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., Nebr., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., native to North America and South America, widely naturalized throughout the tropics and warm-temperate regions of the world.
Discussion
Southern populations of Dysphania ambrosioides are native while those populations in the northern part of the flora area are introduced.
Selected References
None.