Difference between revisions of "Thelesperma ambiguum"
Proc. Amer. Acad. Arts 19: 16. 1883.
Synonyms: Thelesperma fraternum Shinners Thelesperma megapotamicum var. ambiguum (A. Gray) Shinners
FNA>Volume Importer |
imported>Volume Importer |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 54: | Line 54: | ||
|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.