View source for Chenopodium simplex

{{Treatment/ID
|accepted_name=Chenopodium simplex
|accepted_authority=(Torrey) Rafinesque
|publications={{Treatment/Publication
|title=Atlantic J.
|place=1: 146. 1832
|year=1832
}}
|common_names=Maple-leaf goosefoot
|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={{Treatment/ID/Basionym
|name=Chenopodium hybridum var. simplex
|authority=Torrey
|rank=variety
|publication_title=Ann. Lyceum Nat. Hist. New York
|publication_place=2: 239. 1827
}} {{Treatment/ID/Basionym
|name=Chenopodium gigantospermum
|authority=Aellen
|rank=species
|publication_title=C. hybridum subsp. gigantospermum (Aellen) Hultén, C. hybridum var. gigantospermum (Aellen) Rouleau
|publication_place=
}}
|synonyms=
|hierarchy=Chenopodiaceae;Chenopodium;Chenopodium subg. Chenopodium;Chenopodium sect. Grossefoveata;Chenopodium simplex
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Chenopodiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Chenopodium]]</div><div class="higher-taxon"><small>subgenus</small>[[Chenopodium subg. Chenopodium]]</div><div class="higher-taxon"><small>section</small>[[Chenopodium sect. Grossefoveata]]</div><div class="higher-taxon"><small>species</small>[[Chenopodium simplex]]</div></div>
|volume=Volume 4
|mention_page=page 276, 285
|treatment_page=page 284
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect, branched, 3–15 dm, glabrous. <b>Leaves</b> nonaromatic; petiole 0.15–0.45 cm; blade ovate to triangular, 3.5–15 × 2–9 cm, base cordate to truncate, margins sinuate-dentate with 1–5 coarse, acute teeth, distal leaves entire or with few small teeth, apex acute, glabrous. <b>Inflorescences</b> glomerules in terminal and lateral spikes and panicles, 6–15 cm; glomerules irregularly globose, flowers in different stages of development, 0.5–2 mm diam.; bracts absent. <b>Flowers</b>: perianth segments 5, connate into 0.5 mm tube; lobes ovate to lanceolate, 0.7–1 × 0.4–0.6 mm, apex retuse, slightly keeled, glabrous, margins meeting or separated by as much as their width, exposing more than 1/2 fruit at maturity; stamens 5; stigmas 2, 0.1 mm. <b>Achenes</b> depressed-ovoid; pericarp adherent, chartaceous, smooth. <b>Seeds</b> lenticular, 1.3–1.9 mm diam.; seed coat black, indistinctly honeycombed to nearly smooth, margins rounded. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|phenology=Fruiting Jul–Oct.
|habitat=Woods, thickets, hardwood slopes, wooded tallus, nutrient-rich woods, sometimes in waste places and fields
|elevation=0-1800 m
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Ark.;Calif.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|discussion=<p>A closely related Eurasian diploid species, <i>Chenopodium</i> hybridum Linnaeus, probably also occurs in North America as introduced. Its occurrence in the New World needs confirmation. <i>Chenopodium simplex</i> differs from its Eurasian counterpart in having a smoother seed coat, a yellowish pericarp that is more adherent to the seed, and a different chromosome number (A. I. Baranov 1964; R. D. Dorn 1988b).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Chenopodium simplex
|authority=(Torrey) Rafinesque
|rank=species
|parent rank=section
|synonyms=
|basionyms=Chenopodium hybridum var. simplex;Chenopodium gigantospermum
|family=Chenopodiaceae
|phenology=Fruiting Jul–Oct.
|habitat=Woods, thickets, hardwood slopes, wooded tallus, nutrient-rich woods, sometimes in waste places and fields
|elevation=0-1800 m
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Ark.;Calif.;Colo.;Conn.;Del.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Pa.;R.I.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.
|reference=None
|publication title=Atlantic J.
|publication year=1832
|special status=Weedy;Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V4/V4_528.xml
|genus=Chenopodium
|subgenus=Chenopodium subg. Chenopodium
|section=Chenopodium sect. Grossefoveata
|species=Chenopodium simplex
}}<!--

-->[[Category:Treatment]][[Category:Chenopodium sect. Grossefoveata]]