Difference between revisions of "Xanthisma sect. Havardii"
Sida 20: 1410. 2003.
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|name=Haplopappus sect. Havardii | |name=Haplopappus sect. Havardii | ||
|authority=R. C. Jackson | |authority=R. C. Jackson | ||
| + | |rank=section | ||
|publication_title=Univ. Kansas Sci. Bull. | |publication_title=Univ. Kansas Sci. Bull. | ||
|publication_place=46: 479. 1966 | |publication_place=46: 479. 1966 | ||
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|name=Machaeranthera sect. Havardii | |name=Machaeranthera sect. Havardii | ||
|authority=(R. C. Jackson) R. L. Hartman | |authority=(R. C. Jackson) R. L. Hartman | ||
| + | |rank=section | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthisma;Xanthisma sect. Havardii | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthisma;Xanthisma sect. Havardii | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Xanthisma sect. Havardii | name=Xanthisma sect. Havardii | ||
| − | |||
|authority=(R. C. Jackson) D. R. Morgan & R. L. Hartman | |authority=(R. C. Jackson) D. R. Morgan & R. L. Hartman | ||
|rank=section | |rank=section | ||
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|publication year=2003 | |publication year=2003 | ||
|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/V20_895.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Xanthisma | |genus=Xanthisma | ||
Latest revision as of 20:06, 5 November 2020
Annuals, 25–60 cm; taprooted. Leaf blades serrate or dentate, often coarsely so, teeth blunt or terminating in stiff callosities, not bristle-tipped. Heads radiate. Involucres broadly turbinate. Phyllaries in 5–7 series, appressed, stramineous, linear to narrowly oblong, mostly 1–2 mm wide, unequal, proximally rigid, distal 1/5–1/2 with green patch or strip, not expanded distally, apices narrowly obtuse to broadly acute, not bristle-tipped, densely stipitate-glandular. Receptacles: pit borders laciniate, teeth or setae mostly distinct, 0.1–0.5 mm. Ray corollas yellow. Cypselae monomorphic, oblong or narrowly ellipsoid, sometimes slightly asymmetric, flattened laterally, 2.5–3 mm, walls thin, 12–14-ribbed, barely discernible, faces sparsely silky; pappi of white, filiform (not basally flattened) bristles 5–7 mm in 2–3 poorly defined series. x = 4.
Distribution
sc United States.
Discussion
Species 1.
Selected References
None.