View source for Arctium lappa

{{Treatment/ID
|accepted_name=Arctium lappa
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 816. 1753
|year=1753
}}
|common_names=Great burdock;grande bardane
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Arctium;Arctium lappa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cardueae]]</div><div class="higher-taxon"><small>genus</small>[[Arctium]]</div><div class="higher-taxon"><small>species</small>[[Arctium lappa]]</div></div>
|volume=Volume 19
|mention_page=
|treatment_page=page 169
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism some measurement;whole_organism growth form"><b>Plants </b>to 100–300 cm.</span> <span class="statement" id="st-d0_s1" data-properties="petiole architecture;petiole some measurement;petiole pubescence;petiole pubescence"><b>Basal </b>leaves: petioles solid, 15–36 cm, glabrous or thinly cobwebby;</span> <span class="statement" id="st-d0_s2" data-properties="blade length;blade width;blade shape;blade pubescence;blade coloration;blade pubescence">blades 25–80 × 20–70 cm, coarsely dentate to subentire, abaxially thinly gray-tomentose, adaxially green, sparsely short-hairy to nearly glabrous.</span> <span class="statement" id="st-d0_s3" data-properties="head architecture"><b>Heads </b>usually in corymbiform clusters, long-pedunculate.</span> <span class="statement" id="st-d0_s4" data-properties="peduncle some measurement"><b>Peduncles </b>2.5–6 cm.</span> <span class="statement" id="st-d0_s5" data-properties="involucre diameter"><b>Involucres </b>25–45 mm diam.</span> <span class="statement" id="st-d0_s6" data-properties="phyllary shape;phyllary pubescence;inner phyllary coloration;hair orientation;hair orientation;hair orientation"><b>Phyllaries </b>linear to linear-lanceolate, glabrous to loosely cobwebby, inner usually stramineous (sometimes purplish), margins with minute spreading or reflexed hairs.</span> <span class="statement" id="st-d0_s7" data-properties="floret quantity"><b>Florets </b>40+;</span> <span class="statement" id="st-d0_s8" data-properties="corolla coloration or density;corolla some measurement;corolla pubescence">corollas purple (occasionally white), 9–14 mm, glabrous.</span> <span class="statement" id="st-d0_s9" data-properties="cypsela coloration"><b>Cypselae </b>light-brown, often with darker spots, 6–7.5 mm;</span> <span class="statement" id="st-d0_s10" data-properties="2n chromosome quantity;2n chromosome quantity;2n chromosome quantity">pappus bristles 2–5 mm. <b>2n</b> = 32 (Japan), 34 (China), 36 (Japan);</span> <span class="statement" id="st-d0_s11" data-properties="pappus bristle some measurement">(Sweden).</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–early fall (Jul–Oct).
|habitat=Waste places, roadsides, fields, forest clearings
|elevation=0–2200 m
|distribution=Alta.;B.C.;Man.;N.B.;Ont.;Que.;Sask.;Ala.;Ariz.;Calif.;Colo.;Conn.;Ill.;Maine;Mass.;Mich.;Minn.;Nev.;N.H.;N.Y.;N.Dak.;Pa.;R.I.;Utah;Vt.;Wash.;Wis.;Eurasia
|introduced=true
|discussion=<p>BONAP lists Georgia, Idaho, Indiana, Iowa, Maryland, Montana, New Jersey, North Carolina, Ohio, Oregon, and Wyoming; I have not seen specimens.</p><!--
--><p>Roots and young leaves of Arctium lappa are edible and can be used in a variety of food preparations. Extracts of Arctium species purportedly have health benefits and are sold as food supplements. This species is sometimes cultivated as a minor crop.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Arctium lappa
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer–early fall (Jul–Oct).
|habitat=Waste places, roadsides, fields, forest clearings
|elevation=0–2200 m
|distribution=Alta.;B.C.;Man.;N.B.;Ont.;Que.;Sask.;Ala.;Ariz.;Calif.;Colo.;Conn.;Ill.;Maine;Mass.;Mich.;Minn.;Nev.;N.H.;N.Y.;N.Dak.;Pa.;R.I.;Utah;Vt.;Wash.;Wis.;Eurasia
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Introduced
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V19_184.xml
|tribe=Asteraceae tribe Cardueae
|genus=Arctium
|species=Arctium lappa
|2n chromosome quantity=36;34;32
|blade coloration=green
|blade length=25cm;80cm
|blade pubescence=sparsely short-hairy;nearly glabrous
|blade shape=coarsely dentate;subentire
|blade width=20cm;70cm
|corolla coloration or density=purple
|corolla pubescence=glabrous
|corolla some measurement=9mm;14mm
|cypsela coloration=light-brown
|hair orientation=reflexed;spreading;minute
|head architecture=long-pedunculate
|inner phyllary coloration=stramineous
|involucre diameter=25mm;45mm
|pappus bristle some measurement=2mm;5mm
|peduncle some measurement=2.5cm;6cm
|petiole architecture=solid
|petiole pubescence=cobwebby;glabrous
|petiole some measurement=15cm;36cm
|phyllary pubescence=glabrous;loosely cobwebby
|phyllary shape=linear;linear-lanceolate
|whole_organism growth form=plant
|whole_organism some measurement=100cm;300cm
}}<!--

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