View source for Cirsium pumilum

{{Treatment/ID
|accepted_name=Cirsium pumilum
|accepted_authority=(Nuttall) Sprengel
|publications={{Treatment/Publication
|title=Syst. Veg.
|place=3: 375. 1826
|year=1826
}}
|common_names=Pasture thistle
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Carduus pumilus
|authority=Nuttall
|rank=species
|publication_title=Gen. N. Amer. Pl.
|publication_place=2: 130. 1818
}}
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium pumilum
|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>[[Cirsium]]</div><div class="higher-taxon"><small>species</small>[[Cirsium pumilum]]</div></div>
|volume=Volume 19
|mention_page=page 99, 117
|treatment_page=page 116
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Biennials </b>or monocarpic perennials, 25–100 cm; sometimes perennating by root sprouts. <b>Stems</b> erect, villous with septate trichomes and sometimes thinly arachnoid tomentose; branches 0–few, distal, ascending. <b>Leaves</b>: blades oblong-elliptic, 5–30+ × 2–10 cm, ± undulate, shallowly to deeply pinnatifid, lobes ovate to broadly triangular, usually separated by broad sinuses, spinose-dentate or lobed, main spines 1.5–7 mm, slender to stout, abaxial faces villous with septate trichomes, at least along veins, sometimes thinly arachnoid, adaxial faces villous with septate trichomes and thinly arachnoid tomentose or subglabrous; basal often present at flowering, bases tapered; principal cauline sessile, moderately reduced distally, bases often auriculate-clasping; distal reduced, similar to proximal. <b>Heads</b> 1–few, borne singly at tips of main stem and branches, often closely subtended by 1–several bracts. <b>Peduncles</b> 0–15+ cm (above distal leaves), leafy-bracted. <b>Involucres</b> broadly cylindric to ovoid, 3.5–5 cm, 2.5–3 cm diam. (appearing much wider and hemispheric to campanulate in pressed specimens), loosely arachnoid on phyllary margins or glabrate. <b>Phyllaries</b> in 8–10 series, imbricate, ovate or lanceolate (outer) to lance-linear (inner), abaxial faces with ± prominent glutinous ridge, outer and middle appressed, apices ascending to spreading, spines 1.5–6 mm; apices of middle and inner narrowed and scabrid-denticulate, innermost spineless, tapered and entire or with expanded, erose-denticulate, flexuous tips. <b>Corollas</b> pink to purple (white), 40–60 mm, tubes 20–35 mm, throats 11–15 mm, lobes 7–10 mm; style tips 3–7 mm. <b>Cypselae</b> stramineous to brown, 3.5–5 mm, apical collars yellow or colored like body; pappi 35–45 mm. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|distribution=Ont.;Conn.;Del.;Ill.;Ind.;Iowa;Maine;Mass.;Md.;Mich.;Minn.;N.C.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;S.C.;Va.;Vt.;W.Va.;Wis.;United States.
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
--><p>Flowers of <i>Cirsium pumilum</i> are reportedly sweetly scented.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Spines of outer phyllaries stout, 3–6 mm; plants usually with several long branches; leaves usually lobed nearly to the midvein; roots rarely and only slightly tuberous-thickened; cypselae usually 3.5– 4 mm
|[[Cirsium pumilum var. pumilum|Cirsium pumilum var. pumilum]]
|-id=key-0-1
|1
|Spines of outer phyllaries slender, 1.5–3 mm; plants simple or distally with a few short branches; leaves usually shallowly lobed; roots often tuberous-thickened; cypselae usually 4.5–5 mm
|[[Cirsium pumilum var. hillii|Cirsium pumilum var. hillii]]
|}
</div></div><!--

-->{{#Taxon:
name=Cirsium pumilum
|authority=(Nuttall) Sprengel
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Carduus pumilus
|family=Asteraceae
|distribution=Ont.;Conn.;Del.;Ill.;Ind.;Iowa;Maine;Mass.;Md.;Mich.;Minn.;N.C.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;S.C.;Va.;Vt.;W.Va.;Wis.;United States.
|reference=None
|publication title=Syst. Veg.
|publication year=1826
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V19_66.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium pumilum
}}<!--

-->[[Category:Treatment]][[Category:Cirsium]]