View source for Amaranthus palmeri

{{Treatment/ID
|accepted_name=Amaranthus palmeri
|accepted_authority=S. Watson
|publications={{Treatment/Publication
|title=Proc. Amer. Acad. Arts
|place=12: 274. 1877
|year=1877
}}
|common_names=Palmer’s amara nth
|basionyms=
|synonyms=
|hierarchy=Amaranthaceae;Amaranthus;Amaranthus subg. Acnida;Amaranthus sect. Saueranthus;Amaranthus palmeri
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amaranthaceae]]</div><div class="higher-taxon"><small>genus</small>[[Amaranthus]]</div><div class="higher-taxon"><small>subgenus</small>[[Amaranthus subg. Acnida]]</div><div class="higher-taxon"><small>section</small>[[Amaranthus sect. Saueranthus]]</div><div class="higher-taxon"><small>species</small>[[Amaranthus palmeri]]</div></div>
|volume=Volume 4
|mention_page=page 412, 413, 416
|treatment_page=page 418
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>glabrous or nearly so. <b>Stems</b> erect, branched, usually (0.3–)0.5–1.5(–3) m; proximal branches often ascending. <b>Leaves</b>: long-petiolate; blade obovate or rhombic-obovate to elliptic proximally, sometimes lanceolate distally, 1.5–7 × 1–3.5 cm, base broadly to narrowly cuneate, margins entire, plane, apex subobtuse to acute, usually with terminal mucro. <b>Inflorescences</b> terminal, linear spikes to panicles, usually drooping, occasionally erect, especially when young, with few axillary clusters, uninterrupted or interrupted in proximal part of plant. <b>Bracts</b>: of pistillate flowers with long-excurrent midrib, 4–6 mm, longer than tepals, apex acuminate or mucronulate; of staminate flowers, 4 mm, equaling or longer than outer tepals, apex long-acuminate. <b>Pistillate</b> flowers: tepals 1.7–3.8 mm, apex acuminate, mucronulate; style branches spreading; stigmas 2(–3). <b>Staminate</b> flowers: tepals 5, unequal, 2–4 mm, apex acute; inner tepals with prominent midrib excurrent as rigid spine, apex long-acuminate or mucronulate; stamens 5. <b>Utricles</b> tan to brown, occasionally reddish brown, obovoid to subglobose, 1.5–2 mm, shorter than tepals, at maturity walls thin, almost smooth or indistinctly rugose. <b>Seeds</b> dark reddish brown to brown, 1–1.2 mm diam., shiny.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall, occasionally spring–winter in southern part of its native range.
|habitat=Streambanks, disturbed habitats, especially agricultural fields, railroads, waste areas, roadsides
|elevation=100-1000 m
|distribution=Ont.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Kans.;Ky.;La.;Md.;Mass.;Miss.;Mo.;Nebr.;Nev.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Utah;Va.;W.Va.;Wis.;Mexico;introduced Europe;Asia;and Australia.
|discussion=<p>Originally native to the North American Southwest, from southern California to Texas and northern Mexico, <i>Amaranthus palmeri</i> at present is a successful invasive species, which is evident from its expansion both in eastern North America and overseas. Because of its rapid spread, the distribution data presented here are probably incomplete.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Amaranthus palmeri
|author=
|authority=S. Watson
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Amaranthaceae
|phenology=Flowering summer–fall, occasionally spring–winter in southern part of its native range.
|habitat=Streambanks, disturbed habitats, especially agricultural fields, railroads, waste areas, roadsides
|elevation=100-1000 m
|distribution=Ont.;Ariz.;Ark.;Calif.;Colo.;Fla.;Ga.;Ill.;Kans.;Ky.;La.;Md.;Mass.;Miss.;Mo.;Nebr.;Nev.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;S.C.;Tenn.;Tex.;Utah;Va.;W.Va.;Wis.;Mexico;introduced Europe;Asia;and Australia.
|reference=None
|publication title=Proc. Amer. Acad. Arts
|publication year=1877
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_816.xml
|genus=Amaranthus
|subgenus=Amaranthus subg. Acnida
|section=Amaranthus sect. Saueranthus
|species=Amaranthus palmeri
}}<!--

-->[[Category:Treatment]][[Category:Amaranthus sect. Saueranthus]]