Difference between revisions of "Centratherum"
Bull. Sci. Soc. Philom. Paris 1817: 31. 1817.
in F. Cuvier, Dict. Sci. Nat. ed. 2, 7: 383. 1817.
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|discussion=<p>Species 2–4 (1 in the flora).</p> | |discussion=<p>Species 2–4 (1 in the flora).</p> | ||
|tables= | |tables= | ||
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|family=Asteraceae | |family=Asteraceae | ||
|distribution=Fla.;Neotropics;Pacific Islands (Philippines);Australia. | |distribution=Fla.;Neotropics;Pacific Islands (Philippines);Australia. | ||
| − | |reference= | + | |reference=None |
|publication title=Bull. Sci. Soc. Philom. Paris;in F. Cuvier, Dict. Sci. Nat. ed. | |publication title=Bull. Sci. Soc. Philom. Paris;in F. Cuvier, Dict. Sci. Nat. ed. | ||
|publication year=1817;1817 | |publication year=1817;1817 | ||
|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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_248.xml |
|tribe=Asteraceae tribe Vernonieae | |tribe=Asteraceae tribe Vernonieae | ||
|genus=Centratherum | |genus=Centratherum | ||
Revision as of 19:18, 16 December 2019
Perennials (or functionally annuals), 1–3(–8+) dm (stems sometimes rooting at proximal nodes). Leaves 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. Heads discoid (pedunculate, each subtended by 3–8+, ± foliaceous bracts), borne singly. Involucres ± hemispheric, 6–12(–18+) mm diam. Phyllaries 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. Florets 30–50(–100+); corollas usually lavender to purplish (rarely white), tubes longer than funnelform throats, lobes 5, lance-linear, ± equal. Cypselae ± columnar to plumply clavate, 8–10-ribbed, glabrous, often resin-gland-dotted; pappi caducous, of 20–40 lance-linear to subulate scales. x = 16.
Distribution
Fla., Neotropics, Pacific Islands (Philippines), Australia.
Discussion
Species 2–4 (1 in the flora).
Selected References
None.