Difference between revisions of "Chaenactis evermannii"
Leafl. Bot. Observ. Crit. 2: 224. 1912.
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|common_names=Evermann’s pincushion | |common_names=Evermann’s pincushion | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Chaenactis nevadensis var. mainsiana | |name=Chaenactis nevadensis var. mainsiana | ||
|authority=(A. Nelson & J. F. Macbride) Stockwell | |authority=(A. Nelson & J. F. Macbride) Stockwell | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Chaenactis;Chaenactis sect. Macrocarphus;Chaenactis evermannii | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Chaenactis;Chaenactis sect. Macrocarphus;Chaenactis evermannii | ||
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|elevation=1200–3000 m | |elevation=1200–3000 m | ||
|distribution=Idaho. | |distribution=Idaho. | ||
| − | |discussion=<p>Chaenactis evermannii is known from mountains of central Idaho. Reports of it from Washington and California/Nevada (P. Stockwell 1940, some as C. nevadensis var. mainsiana) were based on specimens of C. thompsonii and C. alpigena, respectively; all three species are closely related.</p> | + | |discussion=<p><i>Chaenactis evermannii</i> is known from mountains of central Idaho. Reports of it from Washington and California/<i>Nevada</i> (P. Stockwell 1940, some as <i>C. nevadensis</i> var. mainsiana) were based on specimens of <i>C. thompsonii</i> and <i>C. alpigena</i>, respectively; all three species are closely related.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Chaenactis evermannii | name=Chaenactis evermannii | ||
| − | |||
|authority=Greene | |authority=Greene | ||
|rank=species | |rank=species | ||
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|publication title=Leafl. Bot. Observ. Crit. | |publication title=Leafl. Bot. Observ. Crit. | ||
|publication year=1912 | |publication year=1912 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_1024.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Latest revision as of 20:07, 5 November 2020
Perennials, mostly 6–12 cm (cespitose or ± matted); proximal indument thinning with age, grayish, mostly arachnoid-sericeous to thinly lanuginose. Stems mostly 5–20+, ascending to erect. Leaves basal, 1–5 cm; largest blades broadly ± elliptic, ± plane, 1-pinnately lobed; lobes 2–5 pairs, remote, ± plane. Heads 1(–3) per stem. Peduncles mostly ascending to erect, 5–10 cm. Involucres ± obconic. Phyllaries: longest 8–12 mm; outer predominantly closely lanuginose, sparsely, if at all, stipitate-glandular, apices erect, ± rigid. Corollas 5–6.5 mm. Cypselae 5–6.5 mm (eglandular); pappi: longest scales 2.5–4.5 mm (lengths 0.4–0.8 times corollas). 2n = 12.
Phenology: Flowering Jun–Aug.
Habitat: Subalpine, usually decomposing granitic sand or gravel slopes, ridges, scree, talus, openings in or above conifer forests
Elevation: 1200–3000 m
Discussion
Chaenactis evermannii is known from mountains of central Idaho. Reports of it from Washington and California/Nevada (P. Stockwell 1940, some as C. nevadensis var. mainsiana) were based on specimens of C. thompsonii and C. alpigena, respectively; all three species are closely related.
Selected References
None.