View source for Centratherum

{{Treatment/ID
|accepted_name=Centratherum
|accepted_authority=Cassini
|publications={{Treatment/Publication
|title=Bull. Sci. Soc. Philom. Paris
|place=1817: 31. 1817
|year=1817
}}, {{Treatment/Publication
|title=in F. Cuvier, Dict. Sci. Nat. ed.
|place=2, 7: 383. 1817
|year=1817
}}
|common_names=Larkdaisy
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Vernonieae;Centratherum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Vernonieae]]</div><div class="higher-taxon"><small>genus</small>[[Centratherum]]</div></div>
|etymology=Latin centrum, center, and atherum, prickle or awn, perhaps alluding to spine-tipped middle phyllaries of original species
|volume=Volume 19
|mention_page=page 67, 201
|treatment_page=page 206
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>(or functionally annuals), 1–3(–8+) dm (stems sometimes rooting at proximal nodes). <b>Leaves</b> cauline; sessile or petiolate, petioles ± winged; blades ovate to obovate, lanceolate, or linear, bases ± cuneate, margins toothed, apices acute, abaxial faces usually ± hirtellous to strigillose or tomentose, sometimes nearly glabrous, adaxial faces sparsely scabrellous or glabrate, both usually resin-gland-dotted. <b>Heads</b> discoid (pedunculate, each subtended by 3–8+, ± foliaceous bracts), borne singly. <b>Involucres</b> ± hemispheric, 6–12(–18+) mm diam. <b>Phyllaries</b> 24–50+ in 4–8+ series, each proximally firm, distally ± scarious, the outer ovate to deltate or lanceolate, inner oblong to lanceolate, margins entire, tips rounded to acute, usually apiculate to seta-tipped or attenuate-spinose, abaxial faces glabrous or sparsely strigillose to tomentose and usually ± resin-gland-dotted distally. <b>Florets</b> 30–50(–100+); corollas usually lavender to purplish (rarely white), tubes longer than funnelform throats, lobes 5, lance-linear, ± equal. <b>Cypselae</b> ± columnar to plumply clavate, 8–10-ribbed, glabrous, often resin-gland-dotted; pappi caducous, of 20–40 lance-linear to subulate scales. <b>x</b> = 16.</span><!--

-->{{Treatment/Body
|distribution=Fla.;Neotropics;Pacific Islands (Philippines);Australia.
|discussion=<p>Species 2–4 (1 in the flora).</p>
|tables=
|references={{Treatment/Reference
|id=gleason1922a
|text=Gleason, H. A. 1922. Centratherum. In: N. L. Britton et al., eds. 1905+. North American Flora…. 47+ vols. New York. Vol. 33, pp. 49–50.
}}{{Treatment/Reference
|id=kirkman1981a
|text=Kirkman, L. K. 1981. Taxonomic revision of Centratherum and Phyllocephalum (Compositae: Vernonieae). Rhodora 83: 1–24.
}}
}}<!--

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-->{{#Taxon:
name=Centratherum
|author=John L. Strother
|authority=Cassini
|rank=genus
|parent rank=tribe
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=Fla.;Neotropics;Pacific Islands (Philippines);Australia.
|reference=gleason1922a;kirkman1981a
|publication title=Bull. Sci. Soc. Philom. Paris;in F. Cuvier, Dict. Sci. Nat. ed.
|publication year=1817;1817
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V19_248.xml
|tribe=Asteraceae tribe Vernonieae
|genus=Centratherum
}}<!--

-->[[Category:Treatment]][[Category:Asteraceae tribe Vernonieae]]