Difference between revisions of "Perityle emoryi"
in W. H. Emory, Not. Milit. Reconn., 142. 1848.
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|accepted_name=Perityle emoryi | |accepted_name=Perityle emoryi | ||
| − | |accepted_authority=Torrey | + | |accepted_authority=Torrey |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in W. H. Emory, Not. Milit. Reconn., | |title=in W. H. Emory, Not. Milit. Reconn., | ||
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|elevation=10–1500 m | |elevation=10–1500 m | ||
|distribution=Ariz.;Calif.;Nev.;Utah;Mexico;South America (Chile;Peru). | |distribution=Ariz.;Calif.;Nev.;Utah;Mexico;South America (Chile;Peru). | ||
| − | |discussion=<p>Perityle emoryi is a widespread polyploid of diverse habitats and is often weedy. It is variable; none of the variation appears to have population significance and does not require taxonomic recognition. The range of P. emoryi appears to be gradually expanding.</p> | + | |discussion=<p><i>Perityle emoryi</i> is a widespread polyploid of diverse habitats and is often weedy. It is variable; none of the variation appears to have population significance and does not require taxonomic recognition. The range of <i>P. emoryi</i> appears to be gradually expanding.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Perityle emoryi | name=Perityle emoryi | ||
| − | + | |authority=Torrey | |
| − | |authority=Torrey | ||
|rank=species | |rank=species | ||
|parent rank=section | |parent rank=section | ||
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|publication year=1848 | |publication year=1848 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_795.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Peritylinae | ||
Latest revision as of 20:14, 5 November 2020
Annuals (sometimes persisting), 2–60 cm (delicate or robust, stems relatively few to many, erect or spreading); puberulent to hirsute, glandular-pubescent. Leaves: petioles 3–45 mm; blades ovate, cordate, suborbiculate, or triangular, 17–60 × 10–50 mm, margins deeply toothed, lobed, cleft, or divided, lobes indented to irregularly dissected. Heads borne singly or in corymbiform arrays, 4–10 × 4–10 mm. Peduncles 1–70 mm. Involucres campanulate to hemispheric. Phyllaries 10–20, lanceolate or oblanceolate to ovate-lanceolate, 4–6 × 1–2 mm. Ray florets usually 8–14, rarely rudimentary or 0; corollas white, laminae oblong, 1–4(–6) × 1–3 mm. Disc florets 40–100+; corollas yellow, tubes 0.7–1.3 mm, throats tubular to tubular-funnelform, 0.8–1.3 mm, lobes 0.1–0.2 mm. Cypselae suboblong, oblanceolate, or subcuneate, (1.5–)2–3 mm, margins thin (not calloused), long- or short-ciliate; pappi 0 or of 1 antrorsely to retrorsely barbellate bristles 1–3 mm plus crowns of hyaline, laciniate scales. 2n = 65–72 or 100–116.
Phenology: Flowering year round (depending on latitude).
Habitat: Coastal bluffs, desert plains, slopes, washes
Elevation: 10–1500 m
Distribution
Ariz., Calif., Nev., Utah, Mexico, South America (Chile, Peru).
Discussion
Perityle emoryi is a widespread polyploid of diverse habitats and is often weedy. It is variable; none of the variation appears to have population significance and does not require taxonomic recognition. The range of P. emoryi appears to be gradually expanding.
Selected References
None.