Difference between revisions of "Psathyrotes annua"
Smithsonian Contr. Knowl. 5(6): 100. 1853.
Basionym: Bulbostylis annua Nuttall Proc. Acad. Nat. Sci. Philadelphia 4: 22. 1848
Treatment appears in FNA Volume 21. Treatment on page 417.
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|name=Bulbostylis annua | |name=Bulbostylis annua | ||
|authority=Nuttall | |authority=Nuttall | ||
| + | |rank=species | ||
|publication_title=Proc. Acad. Nat. Sci. Philadelphia | |publication_title=Proc. Acad. Nat. Sci. Philadelphia | ||
|publication_place=4: 22. 1848 | |publication_place=4: 22. 1848 | ||
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name=Psathyrotes annua | name=Psathyrotes annua | ||
| − | |||
|authority=(Nuttall) A. Gray | |authority=(Nuttall) A. Gray | ||
|rank=species | |rank=species | ||
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|publication year=1853 | |publication year=1853 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_1044.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Gaillardiinae | ||
Revision as of 20:32, 16 December 2019
Annuals (rarely persisting), 4–15 cm; glandular-pubescent, weakly tomentose, furfuraceous. Stems erect and spreading, much branched. Leaf blades rounded-deltate to reniform, 4–18 × 6–26 mm, margins of some or all toothed. Peduncles 1–28 mm. Involucres turbinate, 6–9 mm. Phyllaries 13–19, outer falling or persistent, 5–6, lanceolate to lance-linear, tips erect, inner falling, 8–13, lance-linear, tips erect. Florets 10–21; corollas yellow, often purplish at tips, 4–5 mm. Cypselae 2–3 mm; pappi of 35–50, subequal bristles in 1 series, 1–4 mm. 2n = 34.
Phenology: Flowering spring–fall.
Habitat: Alkaline soils of washes and playas
Elevation: 800–2000 m
Distribution
Ariz., Calif., Idaho, Nev., Utah.
Discussion
Selected References
None.
Lower Taxa
None.