Difference between revisions of "Oxytenia"
Proc. Acad. Nat. Sci. Philadelphia 4: 20. 1848.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 44: | Line 44: | ||
|publication year=1848 | |publication year=1848 | ||
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_51.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Revision as of 18:48, 24 September 2019
Subshrubs or shrubs, 50–200 cm. Stems erect, virgately branched. Leaves cauline; alternate; petiolate or ± sessile; blades mostly pinnately lobed (lobes 3–7+, linear to filiform), distal (not lobed) linear to filiform, faces usually sericeous to strigillose, sometimes glabrate or glabrous, usually gland-dotted. Heads disciform, in (ebracteate or nearly so) paniculiform arrays, or borne singly or in glomerules of 1–5+. Involucres ± hemispheric, 4–5+ mm diam. Phyllaries persistent, 10–15+ in 2–3 series, distinct, outer 5–7 herbaceous, inner scarious to membranous (± villous). Receptacles convex; paleae spatulate to cuneiform, membranous, distally ± villous. Pistillate florets 5; corollas 0. Functionally staminate florets 10–25+; corollas whitish, funnelform, lobes 5, erect (filaments connate, anthers distinct or weakly coherent). Cypselae plumply obovoid, obcompressed or weakly 3–4-angled, smooth, ± villous, little, if at all, gland-dotted; pappi 0. x = 18.
Distribution
w United States.
Discussion
Species 1.
Selected References
None.