Difference between revisions of "Thelesperma ambiguum"
Proc. Amer. Acad. Arts 19: 16. 1883.
Synonyms: Thelesperma fraternum Shinners Thelesperma megapotamicum var. ambiguum (A. Gray) Shinners
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|name=Thelesperma fraternum | |name=Thelesperma fraternum | ||
|authority=Shinners | |authority=Shinners | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Thelesperma megapotamicum var. ambiguum | |name=Thelesperma megapotamicum var. ambiguum | ||
|authority=(A. Gray) Shinners | |authority=(A. Gray) Shinners | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Thelesperma;Thelesperma ambiguum | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Thelesperma;Thelesperma ambiguum | ||
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|elevation=10–200 m | |elevation=10–200 m | ||
|distribution=N.Mex.;Tex.;Mexico (Nuevo León;Tamaulipas). | |distribution=N.Mex.;Tex.;Mexico (Nuevo León;Tamaulipas). | ||
| − | |discussion=<p>Thelesperma ambiguum is similar to T. megapotamicum; it may be better treated as a variety of the latter.</p> | + | |discussion=<p><i>Thelesperma ambiguum</i> is similar to <i>T. megapotamicum</i>; it may be better treated as a variety of the latter.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Thelesperma ambiguum | name=Thelesperma ambiguum | ||
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|authority=A. Gray | |authority=A. Gray | ||
|rank=species | |rank=species | ||
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|publication year=1883 | |publication year=1883 | ||
|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_494.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | ||
Latest revision as of 20:12, 5 November 2020
Perennials or subshrubs, 10–30(–50) cm. Cauline leaves crowded to ± scattered over proximal 1/3–1/2 of plant heights, internodes mostly 5–50(–80+) mm; lobes mostly linear to filiform, sometimes oblanceolate, (5–)15–75 × 0.5–1(–2) mm. Calyculi of 3–5+ ovate to oblong bractlets 1–3 mm. Ray florets usually 8, rarely 0; laminae yellow, 4–8(–12+) mm. Disc corollas red-brown, throats shorter than lobes. Cypselae 4–5+ mm; pappi usually 1.5–2+ mm, rarely 0. 2n = 44.
Phenology: Flowering Mar–Jun.
Habitat: Disturbed sites on sands or clays
Elevation: 10–200 m
Distribution
N.Mex., Tex., Mexico (Nuevo León, Tamaulipas).
Discussion
Thelesperma ambiguum is similar to T. megapotamicum; it may be better treated as a variety of the latter.
Selected References
None.
Lower Taxa
None.