Difference between revisions of "Cirsium arizonicum var. chellyense"
Sida 21: 209. 2004.
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|common_names=Navajo thistle | |common_names=Navajo thistle | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=C | ||
| + | |label=Conservation concern | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Cirsium chellyense | |name=Cirsium chellyense | ||
|authority=R. J. Moore & Frankton | |authority=R. J. Moore & Frankton | ||
| + | |rank=species | ||
|publication_title=Canad. J. Bot. | |publication_title=Canad. J. Bot. | ||
|publication_place=52: 547, plate 2. 1974 | |publication_place=52: 547, plate 2. 1974 | ||
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|name=Cirsium chuskaense | |name=Cirsium chuskaense | ||
|authority=R. J. Moore & Frankton | |authority=R. J. Moore & Frankton | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cirsium navajoense | |name=Cirsium navajoense | ||
|authority=R. J. Moore & Frankton | |authority=R. J. Moore & Frankton | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium arizonicum;Cirsium arizonicum var. chellyense | |hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium arizonicum;Cirsium arizonicum var. chellyense | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cirsium arizonicum var. chellyense | name=Cirsium arizonicum var. chellyense | ||
| − | |||
|authority=(R. J. Moore & Frankton) D. J. Keil | |authority=(R. J. Moore & Frankton) D. J. Keil | ||
|rank=variety | |rank=variety | ||
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|publication title=Sida | |publication title=Sida | ||
|publication year=2004 | |publication year=2004 | ||
| − | |special status= | + | |special status=Endemic;Conservation concern |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_128.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Cirsium | |genus=Cirsium | ||
Latest revision as of 19:48, 5 November 2020
Stems glabrous or villous to tomentose with septate trichomes. Leaf blades deeply 1–2× divided, (lobes many, narrow, closely spaced), faces glabrous or abaxial villous along midveins with septate trichomes; main marginal spines usually very slender, 5–12 mm; cauline bases usually decurrent as spiny wings to 30 mm. Involucres cylindric to narrowly ovoid. Phyllary spines slender to ± stout, 1–20 mm. Corollas usually reddish purple, 25–32 mm, tubes 7–11, throats 4–7.5 mm, lobes 11–16 mm; style tips 2.5–3.5 mm. 2n = 34 (as C. chuskaense).
Phenology: Flowering summer (Jun–Sep).
Habitat: Desert scrub, grasslands, pine-oak-juniper woodlands, ponderosa pine forests
Elevation: 1600–2800 m
Discussion
Of conservation concern.
R. J. Moore and C. Frankton (1974b) recognized three narrowly defined new species in the Cirsium arizonicum complex, all from a small area in the Defiance Plateau and Chuska Mountains in northeastern Arizona and northwestern New Mexico. The characters used to differentiate these taxa break down when additional specimens are examined, and they are all combined here as a single variety of C. arizonicum.
Selected References
None.