View source for Amaranthus watsonii

{{Treatment/ID
|accepted_name=Amaranthus watsonii
|accepted_authority=Standley
|publications={{Treatment/Publication
|title=Bull. Torrey Bot. Club
|place=41: 505. 1914
|year=1914
}}
|common_names=Watson’s amaranth
|basionyms=
|synonyms=
|hierarchy=Amaranthaceae;Amaranthus;Amaranthus subg. Acnida;Amaranthus sect. Saueranthus;Amaranthus watsonii
|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 watsonii]]</div></div>
|volume=Volume 4
|mention_page=page 412, 413
|treatment_page=page 418
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>pubescent and glandular-pubescent, especially on bracts. <b>Stems</b> ascending to erect, usually much-branched, 0.1–1 m; branches usually ascending. <b>Leaves</b>: petiole shorter than or equaling blade; blade ovate, obovate to elliptic, or oblong-elliptic, 1–8 × 0.5–4 cm, base broadly cuneate to nearly rounded, margins entire, plane or slightly undulate, apex obtuse to emarginate, usually with terminal mucro. <b>Inflorescences</b> mostly terminal, erect spikes to panicles, usually thick and uninterrupted, with few axillary clusters in basal part of plant. <b>Bracts</b>: of pistillate flowers with long-excurrent midrib, 3–4 mm, longer than tepals, apex long-acuminate or mucronulate; of staminate flowers 2.5–4 mm, usually equaling outer tepals, apex long-acuminate or mucronulate. <b>Pistillate</b> flowers: tepals with dark midribs not excurrent, spatulate to fan-shaped, 1.7–2.2 mm, apex obtuse, with terminal mucro; style branches spreading; stigmas 2(–3). <b>Staminate</b> flowers: tepals 5, equal or subequal, 1.5–2(–3) mm, apex acute or almost obtuse; inner tepal apex acuminate or mucronulate; stamens 3–5. <b>Utricles</b> light brown to brown, obovoid to subglobose, 1.5–2 mm, shorter than tepals, walls thin, smooth or indistinctly rugose. <b>Seeds</b> dark reddish brown to nearly black, (0.8–)1–1.2 mm diam., shiny.</span><!--

-->{{Treatment/Body
|phenology=Flowering late winter–spring, summer–fall.
|habitat=Coastal dunes, beaches, sandy inland areas, weakly saline flats
|elevation=0-100 m
|distribution=Ariz.;Calif.;Mexico (Baja California;Baja California Sur;Sonora);Europe (reported as rare;non-naturalized casual alien).
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Amaranthus watsonii
|authority=Standley
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Amaranthaceae
|phenology=Flowering late winter–spring, summer–fall.
|habitat=Coastal dunes, beaches, sandy inland areas, weakly saline flats
|elevation=0-100 m
|distribution=Ariz.;Calif.;Mexico (Baja California;Baja California Sur;Sonora);Europe (reported as rare;non-naturalized casual alien).
|reference=None
|publication title=Bull. Torrey Bot. Club
|publication year=1914
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V4/V4_817.xml
|genus=Amaranthus
|subgenus=Amaranthus subg. Acnida
|section=Amaranthus sect. Saueranthus
|species=Amaranthus watsonii
}}<!--

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