View source for Achyranthes

{{Treatment/ID
|accepted_name=Achyranthes
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 204. 1753
|year=1753
}}{{Treatment/Publication
|title=Gen. Pl. ed.
|place=5, 96. 1754
|year=1754
}}
|common_names=Chaff-flower
|basionyms=
|synonyms=
|hierarchy=Amaranthaceae;Achyranthes
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amaranthaceae]]</div><div class="higher-taxon"><small>genus</small>[[Achyranthes]]</div></div>
|etymology=Greek achyron, chaff, and anthos, flower
|volume=Volume 4
|mention_page=page 406
|treatment_page=page 435
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial or annual. <b>Stems</b> erect to ascending. <b>Leaves</b> opposite, petiolate; blade elliptic, ovate to orbiculate, or broadly rhombate, margins entire. <b>Inflorescences</b> terminal and axillary, pedunculate, elongate, many-flowered, simple spikes or few-branched panicles; flowers crowded together at tips, becoming more widely spaced toward base. <b>Flowers</b> bisexual, often becoming deflexed with age; tepals 4 or 5, basally connate, without ornamentation, coriaceous, becoming indurate in fruit, ± glabrous; filaments basally connate into short tubes or cups; anthers 4-locular; pseudostaminodes 5; ovary obovoid or turbinate; ovule 1; style elongate; stigma 1, capitate. <b>Utricles</b> enclosed by and falling with indurate tepals, elliptic or cylindric, membranous, indehiscent. <b>Seeds</b> 1, inverted, obovoid or ovoid, smooth.</span><!--

-->{{Treatment/Body
|distribution=c and se United States;Mexico;West Indies;Central America;South America;tropical;subtropical;and warm-temperate regions of the Old World.
|discussion=<p>Species 8–12 (2 in the flora).</p><!--
--><p>The groups of plants referred to as Achyranthes and Alternanthera have been subject to considerable nomenclatural confusion, primarily because P. C. Standley (1915) designated Achyranthes repens Linnaeus as the lectotype species of Achyranthes. As a result, species that had been placed in Achyranthes were transferred to Centrostachys Wallich, and species that had been in Alternanthera were transferred to Achyranthes. A. A. Bullock (1957; see also R. Melville 1958) showed that Standley’s lectotypification was incorrect and that the type species of Achyranthes is Achyranthes aspera Linnaeus. The generic concepts of Achyranthes and Alternanthera then returned to those prior to 1915.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Pseudostaminode margins fimbriate at apex
|[[Achyranthes aspera|Achyranthes aspera]]
|-id=key-0-1
|1
|Pseudostaminode margins entire, denticulate, or slightly 2-lobed at apex
|[[Achyranthes japonica|Achyranthes japonica]]
|}
</div></div><!--

-->{{#Taxon:
name=Achyranthes
|author=Kenneth R. Robertson
|authority=Linnaeus
|rank=genus
|parent rank=family
|synonyms=
|basionyms=
|family=Amaranthaceae
|distribution=c and se United States;Mexico;West Indies;Central America;South America;tropical;subtropical;and warm-temperate regions of the Old World.
|reference=None
|publication title=Sp. Pl.;Gen. Pl. ed.
|publication year=1753;1754
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_853.xml
|genus=Achyranthes
}}<!--

-->[[Category:Treatment]][[Category:Amaranthaceae]]