View source for Polygonum austiniae

{{Treatment/ID
|accepted_name=Polygonum austiniae
|accepted_authority=Greene
|publications={{Treatment/Publication
|title=Bull. Calif. Acad. Sci.
|place=1: 212. 1885
|year=1885
}}
|common_names=Mrs. Austin’s knotweed
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Polygonum douglasii subsp. austiniae
|authority=(Greene) E. Murray
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Polygonum;Polygonum sect. Duravia;Polygonum austiniae
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Polygonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Polygonum]]</div><div class="higher-taxon"><small>section</small>[[Polygonum sect. Duravia]]</div><div class="higher-taxon"><small>species</small>[[Polygonum austiniae]]</div></div>
|volume=Volume 5
|mention_page=page 562, 568
|treatment_page=page 569
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems ascending to erect, green to purplish, much-branched from base, not wiry, 5–10(–20) cm, papillose-scabridulous. <b>Leaves</b> uniformly distributed, articulated to ocreae, basal leaves persistent, distal leaves abruptly reduced to bracts, articulated to ocreae; ocrea 3–5 mm, papillose-scabridulous or glabrous, proximal part funnelform, distal part lacerate; petiole 0.1–2 mm; blade 1-veined, not pleated, ovate to elliptic or obovate, 5–15 × 4–7 mm, margins flat or narrowly revolute, papillose-denticulate, apex acute or mucronate. <b>Inflorescences</b> axillary and terminal, spikelike, slender; cymes spaced along branches, 1–4-flowered. <b>Pedicels</b> exserted from ocreae, reflexed, 1–2.5 mm. <b>Flowers</b> closed; perianth (1.8–)2–2.6 mm; tube 20–28% of perianth length; tepals overlapping, green or purple, with narrow whitish margins, petaloid or sepaloid, oblong, cucullate, navicular, apex rounded; midveins unbranched; stamens 8. <b>Achenes</b> enclosed in perianth, black, elliptic to obovate, 2–2.5 mm, faces subequal, shiny, ± smooth.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Sep.
|habitat=Dry to moist flats on banks, sagebrush plains, and ponderosa pine forests
|elevation=1300-1600 m
|distribution=Alta.;B.C.;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.;Wyo.
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Polygonum austiniae
|author=
|authority=Greene
|rank=species
|parent rank=section
|synonyms=Polygonum douglasii subsp. austiniae
|basionyms=
|family=Polygonaceae
|phenology=Flowering Jun–Sep.
|habitat=Dry to moist flats on banks, sagebrush plains, and ponderosa pine forests
|elevation=1300-1600 m
|distribution=Alta.;B.C.;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.;Wyo.
|reference=None
|publication title=Bull. Calif. Acad. Sci.
|publication year=1885
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V5/V5_1165.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Polygonum
|section=Polygonum sect. Duravia
|species=Polygonum austiniae
}}<!--

-->[[Category:Treatment]][[Category:Polygonum sect. Duravia]]