View source for Alternanthera flavescens

{{Treatment/ID
|accepted_name=Alternanthera flavescens
|accepted_authority=Kunth
|publications={{Treatment/Publication
|title=in A. von Humboldt et al., Nov. Gen. Sp.
|place=2: 207. 1818
|year=1818
}}
|common_names=Yellow joyweed
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Achyranthes ramosissima
|authority=(Martius) Standley
|rank=species
}} {{Treatment/ID/Synonym
|name=Alternanthera ramosissima
|authority=(Martius) Chodat
|rank=species
}}
|hierarchy=Amaranthaceae;Alternanthera;Alternanthera flavescens
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amaranthaceae]]</div><div class="higher-taxon"><small>genus</small>[[Alternanthera]]</div><div class="higher-taxon"><small>species</small>[[Alternanthera flavescens]]</div></div>
|volume=Volume 4
|mention_page=
|treatment_page=page 448
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> perennial, 6–15 dm. <b>Stems</b> ascending to spreading, often clambering, pubescent, glabrate. <b>Leaves</b> sessile; blade ovate to lanceolate or elliptic, 1.8–8 × 0.5–3 cm, herbaceous, apex long-acuminate or acute, sparsely strigose or glabrous. <b>Inflorescences</b> terminal and axillary, pedunculate; heads yellowish white, subglobose to cylindric, 0.9–2.5(–4) × 0.9–1 cm; bracts keeled, less than 1/2 as long as tepals. <b>Flowers</b>: tepals monomorphic, green, lanceolate, 3.4–4.7 mm, apex acute, villous, hairs not barbed; stamens 5; pseudostaminodes ligulate, margins laciniate. <b>Utricles</b> included within tepals, greenish yellow, ellipsoid, 2.5 mm, apex acute. <b>Seeds</b> ovoid, 1.2–1.3 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering year-round.
|habitat=Coastal hammocks, thickets, sand bars
|elevation=0 m
|distribution=Fla.;Mexico;West Indies;South America.
|introduced=true
|discussion=<p><i>Alternanthera flavescens</i> has long been known as <i>A. ramosissima</i> (Martius) Standley.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Alternanthera flavescens
|authority=Kunth
|rank=species
|parent rank=genus
|synonyms=Achyranthes ramosissima;Alternanthera ramosissima
|basionyms=
|family=Amaranthaceae
|phenology=Flowering year-round.
|habitat=Coastal hammocks, thickets, sand bars
|elevation=0 m
|distribution=Fla.;Mexico;West Indies;South America.
|introduced=true
|reference=None
|publication title=in A. von Humboldt et al., Nov. Gen. Sp.
|publication year=1818
|special status=Introduced
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_879.xml
|genus=Alternanthera
|species=Alternanthera flavescens
}}<!--

-->[[Category:Treatment]][[Category:Alternanthera]]