View source for Carduus acanthoides subsp. acanthoides

{{Treatment/ID
|accepted_name=Carduus acanthoides subsp. acanthoides
|accepted_authority=unknown
|publications=
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Carduus;Carduus acanthoides;Carduus acanthoides subsp. acanthoides
|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>[[Carduus]]</div><div class="higher-taxon"><small>species</small>[[Carduus acanthoides]]</div><div class="higher-taxon"><small>subspecies</small>[[Carduus acanthoides subsp. acanthoides]]</div></div>
|volume=Volume 19
|mention_page=
|treatment_page=page 92
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials, 30–200(–400) cm. <b>Stems</b> openly branching, villous with curled, septate hairs to nearly glabrous, teeth of wings to 1.5 cm, wing spines to 8 mm. <b>Leaves</b>: basal 10–30 cm, tapering to winged petioles, margins spiny toothed to deeply 1–2×-pinnately divided; cauline sessile, gradually smaller; marginal spines to 5 mm; abaxial leaf faces glabrate except for long, curled, septate hairs along veins; adaxial faces sparsely hairy or glabrate. <b>Heads</b> borne singly or in corymbiform arrays of 2–5, sometimes also in upper axils, 18–25 mm. <b>Peduncles</b> spiny- winged throughout, to 4(–10) cm. <b>Involucres</b> hemispheric, 14–20 × 10–25 mm. <b>Phyllaries</b> linear to narrowly lanceolate, outer and middle with appressed bases 1–1.5 mm wide and appressed to spreading appendages 0.5–1 mm wide, distally glabrous or minutely ciliolate, spine tips 1–2 mm, the inner phyllaries with unarmed, straight or twisted tips. <b>Corollas</b> purple or ± white, 13–20 mm. <b>Cypselae</b> golden to brown, 2.5–3 mm; pappus bristles 11–13 mm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–early fall (Jun–Oct).
|habitat=Aggressive weed of waste ground, pastures, roadsides, fields
|elevation=0–3000 m
|distribution=B.C.;N.B.;N.S.;Ont.;Que.;Calif.;Colo.;Idaho;Ill.;Iowa;Kans.;Md.;Mich.;Minn.;Mo.;Mont.;Nebr.;N.J.;N.Y.;N.C.;N.Dak.;Pa.;R.I.;S.Dak.;Vt.;Va.;W.Va.;Wis.;Wyo.;Eurasia.
|discussion=<p><i>Carduus acanthoides</i> has been reported as growing in Connecticut, Delaware, Kentucky, Massachusetts, Maine, Ohio, Oklahoma, Texas, and Washington; I have not seen specimens from those states. It was collected only once in New Brunswick in 1992.</p><!--
--><p><i>Carduus acanthoides</i> is a serious weed in pasturelands, where it displaces and suppresses growth of other plants and limits access of grazing animals to more palatable plants (A. M. Desrochers et al. 1988). It sometimes grows in dense stands.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Carduus acanthoides subsp. acanthoides
|author=
|authority=unknown
|rank=subspecies
|parent rank=species
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer–early fall (Jun–Oct).
|habitat=Aggressive weed of waste ground, pastures, roadsides, fields
|elevation=0–3000 m
|distribution=B.C.;N.B.;N.S.;Ont.;Que.;Calif.;Colo.;Idaho;Ill.;Iowa;Kans.;Md.;Mich.;Minn.;Mo.;Mont.;Nebr.;N.J.;N.Y.;N.C.;N.Dak.;Pa.;R.I.;S.Dak.;Vt.;Va.;W.Va.;Wis.;Wyo.;Eurasia.
|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/V19-20-21/V19_45.xml
|tribe=Asteraceae tribe Cardueae
|genus=Carduus
|species=Carduus acanthoides
|subspecies=Carduus acanthoides subsp. acanthoides
}}<!--

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