View source for Cirsium barnebyi

{{Treatment/ID
|accepted_name=Cirsium barnebyi
|accepted_authority=S. L. Welsh & Neese
|publications={{Treatment/Publication
|title=Brittonia
|place=33: 296, fig. 3. 1981
|year=1981
}}
|common_names=Barneby’s thistle
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium barnebyi
|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 barnebyi]]</div></div>
|volume=Volume 19
|mention_page=page 106, 107, 108
|treatment_page=page 124
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–50 cm; caudices and woody taproots. <b>Stems</b> 1–few, erect, gray-tomentose or glabrate; branches few, above middle, ascending. <b>Leaves</b>: blades oblong-elliptic, 10–35 × 2–7 cm, strongly undulate, margins shallowly to deeply lobed, lobes 8–15 pairs, linear-lanceolate to broadly triangular, closely spaced, spreading, coarsely spinose-dentate or cleft into 2–5 spine-tipped divisions, main spines 3–5 mm, faces densely gray-white-tomentose; basal usually present at flowering, winged-petiolate; principal cauline becoming sessile and progressively reduced distally, bases decurrent as spiny wings to 5 cm; distal cauline usually much reduced, less lobed. <b>Heads</b> 1–20+, borne singly or clustered at branch tips, in leafy, ± corymbiform arrays. <b>Peduncles</b> 0–4 cm. <b>Involucres</b> ovoid to hemispheric or campanulate, 1.7–2 × 1.5–2 cm, loosely arachnoid on phyllary margins or glabrate. <b>Phyllaries</b> in 6–9 series, imbricate, ovate (outer) to linear-lanceolate (inner), entire, abaxial faces with narrow glutinous ridge; outer and middle appressed, spines ascending to spreading, stramineous, 2–7 mm; apices of inner often flexuous, narrow, flat, entire, spineless, glabrous. <b>Corollas</b> lavender to pink-purple, 18–28 mm, tubes 7–9 mm, throats 4–8 mm, lobes 5–11 mm; style tips 3.5–5 mm. <b>Cypselae</b> tan to brown, 5–5.5 mm, apical collars colored like body, narrow; pappi 15–23 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jun–Sep).
|habitat=Dry juniper woodlands, sagebrush scrub, on shale, limestone, sandstone
|elevation=1600–2600 m
|distribution=Colo.;Utah;Wyo.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Cirsium barnebyi</i> occurs from the southern Rocky Mountains of southwestern Wyoming, northeastern Utah, and northwestern Colorado.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cirsium barnebyi
|authority=S. L. Welsh & Neese
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer (Jun–Sep).
|habitat=Dry juniper woodlands, sagebrush scrub, on shale, limestone, sandstone
|elevation=1600–2600 m
|distribution=Colo.;Utah;Wyo.
|reference=None
|publication title=Brittonia
|publication year=1981
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_84.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium barnebyi
}}<!--

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