View source for Polycarpon tetraphyllum subsp. tetraphyllum

{{Treatment/ID
|accepted_name=Polycarpon tetraphyllum subsp. tetraphyllum
|accepted_authority=unknown
|publications=
|basionyms=
|synonyms=
|hierarchy=Caryophyllaceae;Caryophyllaceae subfam. Polycarpoideae;Polycarpon;Polycarpon tetraphyllum;Polycarpon tetraphyllum subsp. tetraphyllum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Caryophyllaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Caryophyllaceae subfam. Polycarpoideae]]</div><div class="higher-taxon"><small>genus</small>[[Polycarpon]]</div><div class="higher-taxon"><small>species</small>[[Polycarpon tetraphyllum]]</div><div class="higher-taxon"><small>subspecies</small>[[Polycarpon tetraphyllum subsp. tetraphyllum]]</div></div>
|volume=Volume 5
|mention_page=page 25
|treatment_page=page 26
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>prostrate to erect, 3–15 cm. <b>Leaves</b> in whorls of 4 or opposite; stipules 1.8–2.8 mm; blade elliptic, ovate, or obovate, 2–12 mm. <b>Inflorescence</b> bracts absent. <b>Flowers</b>: sepals with keel and apex sometimes purplish, keeled, 1.5–2.5 mm; petals linear to oblong, 0.5–0.8 mm, ca. 1/2 times as long as sepals; stamens 3(–5). <b>Capsules</b> clasped by calyx, broadly ovoid, valve margins rolled inward after dehiscence. <b>Seeds</b> ovoid to lenticular, 0.4–0.8 mm, finely papillate. <b>2n</b> = 32, 48, 64 (all Europe).</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–fall.
|habitat=Waste places, cultivated land
|elevation=0-1400 m
|distribution=B.C. ;Ala.;Calif.;Fla.;Ga.;S.C.;Tex.;s Europe (Mediterranean region);considered cosmopolitan via introduction;at least in part from ships' ballast.
|discussion=<p>Historic records are known from Massachusetts [wool waste, North Worcester (Woodward in 1917, GH)] and Pennsylvania [ballast at Philadelphia (Burk in 1880, PH), South Bethlehem, 1890s (T. C. Porter 1892)].</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Polycarpon tetraphyllum subsp. tetraphyllum
|author=
|authority=unknown
|rank=subspecies
|parent rank=species
|synonyms=
|basionyms=
|family=Caryophyllaceae
|phenology=Flowering spring–fall.
|habitat=Waste places, cultivated land
|elevation=0-1400 m
|distribution=B.C. ;Ala.;Calif.;Fla.;Ga.;S.C.;Tex.;s Europe (Mediterranean region);considered cosmopolitan via introduction;at least in part from ships' ballast.
|introduced=true
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_43.xml
|subfamily=Caryophyllaceae subfam. Polycarpoideae
|genus=Polycarpon
|species=Polycarpon tetraphyllum
|subspecies=Polycarpon tetraphyllum subsp. tetraphyllum
}}<!--

-->[[Category:Treatment]][[Category:Polycarpon tetraphyllum]]