View source for Polygonum paronychia

{{Treatment/ID
|accepted_name=Polygonum paronychia
|accepted_authority=Chamisso & Schlechtendal
|publications={{Treatment/Publication
|title=Linnaea
|place=3: 51. 1828
|year=1828
}}
|common_names=Beach or black or dune knotweed
|basionyms=
|synonyms=
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Polygonum;Polygonum sect. Duravia;Polygonum paronychia
|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 paronychia]]</div></div>
|volume=Volume 5
|mention_page=page 561
|treatment_page=page 562
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Shrubs </b>or subshrubs. <b>Stems</b> prostrate or ascending, brown, branched, rooting at nodes, not wiry, 10–100 cm, glabrous, covered with remains of lacerate, hyaline ocreae. <b>Leaves</b> crowded at branch tips, articulated to ocreae, basal leaves caducous or persistent, distal leaves not reduced in size; ocrea 15–20 mm, glabrous, proximal part cylindric to funnelform, distal part silvery, entire or slightly lacerate, disintegrating into persistent white-gray curly fibers; petiole 0–0.5 mm; blade 1-veined, without pleats, linear to oblanceolate, (5–)10–20(–33) × 3–8 mm, coriaceous, margins revolute, smooth, apex acute or mucronate. <b>Inflorescences</b> axillary; cymes crowded in distal axils, 2–5-flowered. <b>Pedicels</b> enclosed in ocreae, erect to spreading, 2–5 mm. <b>Flowers</b> semi-open or open; perianth (4.5–)6–10 mm; tube 22–48% of perianth length; tepals partially overlapping, uniformly pink or white, reddish brown when dried, petaloid, oblong-ovate to ± lanceolate, apex rounded; midveins pinnately branched; stamens 8. <b>Achenes</b> enclosed in or slightly exserted from perianth, black, ovate, 4–5 mm, faces subequal, shiny, smooth.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Sep.
|habitat=Coastal sands, scrub along coast
|elevation=0-50 m
|distribution=B.C.;Calif.;Oreg.;Wash.
|discussion=<p><i>Polygonum paronychia</i> may be cultivated in rock gardens in open sites with sandy soil.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Polygonum paronychia
|authority=Chamisso & Schlechtendal
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Polygonaceae
|phenology=Flowering Mar–Sep.
|habitat=Coastal sands, scrub along coast
|illustrator=Barbara Alongi
|illustration copyright=Flora of North America Association
|elevation=0-50 m
|distribution=B.C.;Calif.;Oreg.;Wash.
|reference=None
|publication title=Linnaea
|publication year=1828
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_1146.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Polygonum
|section=Polygonum sect. Duravia
|species=Polygonum paronychia
}}<!--

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