Difference between revisions of "Syntrichopappus"
in War Department [U.S.], Pacif. Railr. Rep. 4(5): 106, plate 15. 1857 ·.
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|accepted_name=Syntrichopappus | |accepted_name=Syntrichopappus | ||
| − | |accepted_authority=A. Gray | + | |accepted_authority=A. Gray |
|publications={{Treatment/Publication | |publications={{Treatment/Publication | ||
|title=in War Department [U.S.], Pacif. Railr. Rep. | |title=in War Department [U.S.], Pacif. Railr. Rep. | ||
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|distribution=w United States;nw Mexico. | |distribution=w United States;nw Mexico. | ||
|discussion=<p>Species 2 (2 in the flora).</p><!-- | |discussion=<p>Species 2 (2 in the flora).</p><!-- | ||
| − | --><p>B. G. Baldwin and B. L. Wessa (2000) found that Syntrichopappus lemmonii nests within a clade of Eriophyllum and Pseudobahia species; circumscriptions of these genera are likely to change.</p> | + | --><p>B. G. Baldwin and B. L. Wessa (2000) found that <i>Syntrichopappus lemmonii</i> nests within a clade of <i>Eriophyllum</i> and <i>Pseudobahia</i> species; circumscriptions of these genera are likely to change.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Syntrichopappus | name=Syntrichopappus | ||
|author=Dale E. Johnson | |author=Dale E. Johnson | ||
| − | |authority=A. Gray | + | |authority=A. Gray |
|rank=genus | |rank=genus | ||
|parent rank=subtribe | |parent rank=subtribe | ||
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|publication year= | |publication year= | ||
|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_954.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 20:15, 5 November 2020
Annuals, 1–10 cm. Stems decumbent or erect, branched from bases or throughout. Leaves mostly cauline; mostly alternate (proximal opposite); petiolate or sessile; blades either linear and margins entire, or narrowly cuneate to spatulate and margins usually distally 3-lobed, faces sparsely tomentose to moderately woolly or glabrescent. Heads radiate, borne singly or in loose, corymbiform arrays. Involucres subcylindric, 2–5+ mm diam. Phyllaries persistent, 5–8 in 1 series (spreading, not reflexed in fruit, distinct, oblanceolate, subequal, alternate ones scarious-margined, apices acute). Receptacles convex, ± knobby or smooth, epaleate. Ray florets 5–8, pistillate, fertile; corollas either yellow, or white or pinkish with reddish veins. Disc florets 10–20+, bisexual, fertile; corollas yellow, tubes shorter than narrowly funnelform throats, lobes 5, ovate-deltate (glabrous; anther appendages narrowly deltate, not glandular; style appendages narrowly triangular). Cypselae narrowly obconic, clavate, or fusiform, glabrous or sparsely to densely hispidulous; pappi 0, or ± fragile (falling in whole or fragmented rings), of 20–40 basally connate or coherent, ± barbellate bristles or subulate scales. x = 7.
Distribution
w United States, nw Mexico.
Discussion
Species 2 (2 in the flora).
B. G. Baldwin and B. L. Wessa (2000) found that Syntrichopappus lemmonii nests within a clade of Eriophyllum and Pseudobahia species; circumscriptions of these genera are likely to change.
Selected References
None.
Lower Taxa
Key
| 1 | Ray laminae yellow | Syntrichopappus fremontii |
| 1 | Ray laminae white or pinkish with reddish veins | Syntrichopappus lemmonii |