Difference between revisions of "Cirsium eatonii var. clokeyi"
Sida 21: 212. 2004.
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|common_names=Clokey or Spring Mountains or white-spine thistle | |common_names=Clokey or Spring Mountains or white-spine 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 clokeyi | |name=Cirsium clokeyi | ||
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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_142.xml |
|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
|genus=Cirsium | |genus=Cirsium | ||
Latest revision as of 19:48, 5 November 2020
Stems erect or ascending, stout, 40–150 cm. Leaf faces glabrous or nearly so. Heads usually short-pedunculate in erect, racemiform arrays or sometimes long-pedunculate in openly corymbiform arrays. Involucres 3–5 cm, glabrous or thinly arachnoid tomentose, individual phyllaries evident. Phyllaries green or purplish-tinged; outer pectinately spiny 1/2 their length with many lateral spines; apical spines stout. Corollas purple, 24–33 mm, tubes 3.5–7 mm, throats 11–14 mm, lobes 8–12.5 mm. Pappi 16–18 mm. 2n = 34 (as C. clokeyi).
Phenology: Flowering summer (Jul–Sep).
Habitat: Gravelly slopes, ravines, montane coniferous forests, subalpine forests, alpine scree
Elevation: 2300–3500 m
Discussion
Of conservation concern.
Variety clokeyi is endemic to the Spring Range of Clark County. Its range overlaps that of Cirsium arizonicum var. tenuisectum but no hybrids between the two are known.
Selected References
None.