View source for Cirsium ownbeyi

{{Treatment/ID
|accepted_name=Cirsium ownbeyi
|accepted_authority=S. L. Welsh
|publications={{Treatment/Publication
|title=Great Basin Naturalist
|place=42: 200. 1982
|year=1982
}}
|common_names=Ownbey’s thistle
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium ownbeyi
|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 ownbeyi]]</div></div>
|volume=Volume 19
|mention_page=page 105
|treatment_page=page 153
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–70 cm; taproots and branched caudices with persistent dark-brown leaf bases. <b>Stems</b> 1–several, erect, simple or sparingly branched in distal 1/2, glabrous or thinly arachnoid and sparingly villous with jointed trichomes. <b>Leaves</b>: blades oblong to elliptic or oblanceolate, 15–30+ × 2–7 cm, deeply 2–3-pinnately divided, lobes linear to linear-lanceolate, spinulose to spiny-dentate or shallowly lobed, main spines slender, 2–8 mm, abaxial faces glabrous to thinly tomentose and villous along major veins, soon glabrescent, adaxial glabrous; basal present at flowering, narrowly spiny winged-petiolate; principal cauline well distributed, proximal winged-petiolate, mid and distal sessile, gradually reduced, bases decurrent as spiny wings 1–3 cm; distalmost reduced to spiny-pectinate bracts. <b>Heads</b> 1–few, erect, ± crowded in corymbiform arrays. <b>Peduncles</b> 0–4 cm. <b>Involucres</b> ovoid, 1.8–2.5 cm, 1.5–2.5 cm diam., loosely arachnoid, glabrate. <b>Phyllaries</b> in 5–6 series, imbricate, green, linear-lanceolate, abaxial faces without or with poorly developed glutinous ridge; outer and mid bases appressed, apices stiffly radiating to ascending, long, very narrow, entire, spines slender, 3–10 mm; apices of inner straight, flexuous. <b>Corollas</b> white to pink or pink-purple, 16–20 mm, tubes 6–8 mm, throats 5–6 mm, lobes 5–7 mm; style tips 3.5–4.5 mm. <b>Cypselae</b> brown, ca. 4 mm, apical collars not differentiated; pappi 13–17 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jun–Aug).
|habitat=Stony soils in sparsely vegetated areas of pinyon-juniper woodlands, sagebrush scrub, arid grasslands, and riparian scrub, in dry sites or sometimes on seeps
|elevation=1500–2400 m
|distribution=Colo.;Utah;Wyo.
|discussion=<p><i>Cirsium ownbeyi</i> is endemic to the eastern side of the Uintah Mountains in northeastern Utah, southwestern Wyoming, and northwestern Colorado. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cirsium ownbeyi
|authority=S. L. Welsh
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|phenology=Flowering summer (Jun–Aug).
|habitat=Stony soils in sparsely vegetated areas of pinyon-juniper woodlands, sagebrush scrub, arid grasslands, and riparian scrub, in dry sites or sometimes on seeps
|elevation=1500–2400 m
|distribution=Colo.;Utah;Wyo.
|reference=None
|publication title=Great Basin Naturalist
|publication year=1982
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_148.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium ownbeyi
}}<!--

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