View source for Cerastium semidecandrum

{{Treatment/ID
|accepted_name=Cerastium semidecandrum
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 438. 1753
|year=1753
}}
|common_names=Five-stamen mouse-ear chickweed
|basionyms=
|synonyms=
|hierarchy=Caryophyllaceae;Caryophyllaceae subfam. Alsinoideae;Cerastium;Cerastium semidecandrum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Caryophyllaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Caryophyllaceae subfam. Alsinoideae]]</div><div class="higher-taxon"><small>genus</small>[[Cerastium]]</div><div class="higher-taxon"><small>species</small>[[Cerastium semidecandrum]]</div></div>
|volume=Volume 5
|mention_page=page 75, 83, 89
|treatment_page=page 90
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual, with slender taproot. <b>Stems</b> erect or ascending, branching at base, 1–20 cm, viscid, covered with short, dense, glandular and eglandular hairs; short axillary tufts of leaves absent. <b>Leaves</b> not marcescent, sessile but proximal leaves often spatulate; blade 5–18 × 2–5 mm, covered with short, white hairs; basal leaves with blade narrowly oblanceolate and ± spatulate, apex obtuse; cauline with blades ovate to elliptic-oblong, apex obtuse to acute. <b>Inflorescences</b> open, 3–30-flowered cymes; bracts lanceolate, with broad, scarious margins, glandular-pubescent. <b>Pedicels</b> curved at apex, often sharply angled at base, 3–8(–12) mm, 1–3 times as long as capsule, densely glandular-pubescent and viscid. <b>Flowers</b>: sepals narrowly lanceolate, 3–5 mm, margins broad, apex acute, glandular-pubescent; petals with unbranched veins, oblanceolate, 2–3 mm, shorter than sepals, apex notched; stamens 5; styles 5. <b>Capsules</b> cylindric, slightly curved, 4.5–6.5 mm, 1.5–2 times as long as sepals; teeth 10, erect, margins convolute. <b>Seeds</b> pale yellowish brown, 0.4–0.6 mm, finely tuberculate; testa not inflated. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Common weed in dry, sandy, and gravelly places, roadsides and footpaths, parking lots, dunes
|elevation=0-300 m
|distribution=B.C.;N.S.;Ont.;Ark.;Conn.;Fla.;Ga.;Idaho;Ill.;Ind.;Kans.;La.;Md.;Mass.;Mich.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;S.C.;Wash.;Wis.;Eurasia.
|discussion=<p>The very broad, scarious margins of the sepals and bracts distinguish this small, ephemeral species.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cerastium semidecandrum
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Caryophyllaceae
|phenology=Flowering spring.
|habitat=Common weed in dry, sandy, and gravelly places, roadsides and footpaths, parking lots, dunes
|elevation=0-300 m
|distribution=B.C.;N.S.;Ont.;Ark.;Conn.;Fla.;Ga.;Idaho;Ill.;Ind.;Kans.;La.;Md.;Mass.;Mich.;Mo.;Nebr.;N.J.;N.Y.;N.C.;Ohio;Oreg.;Pa.;R.I.;S.C.;Wash.;Wis.;Eurasia.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V5/V5_186.xml
|subfamily=Caryophyllaceae subfam. Alsinoideae
|genus=Cerastium
|species=Cerastium semidecandrum
}}<!--

-->[[Category:Treatment]][[Category:Cerastium]]