Difference between revisions of "Gynura"
in F. Cuvier, Dict. Sci. Nat. ed. 2, 34: 391. 1825.
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--><p>Some species of <i>Gynura</i> are important in the horticultural trade; abundant literature is accessible through gardening compendia.</p> | --><p>Some species of <i>Gynura</i> are important in the horticultural trade; abundant literature is accessible through gardening compendia.</p> | ||
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|distribution=tropical Asia;Africa (including Madagascar);sw Pacific Islands;Australia. | |distribution=tropical Asia;Africa (including Madagascar);sw Pacific Islands;Australia. | ||
|introduced=true | |introduced=true | ||
| − | |reference= | + | |reference=None |
|publication title=in F. Cuvier, Dict. Sci. Nat. ed. | |publication title=in F. Cuvier, Dict. Sci. Nat. ed. | ||
|publication year=1825 | |publication year=1825 | ||
|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/V20_1367.xml |
|tribe=Asteraceae tribe Senecioneae | |tribe=Asteraceae tribe Senecioneae | ||
|genus=Gynura | |genus=Gynura | ||
Revision as of 19:25, 16 December 2019
Perennials [subshrubs, vines], 20–100[300+] cm (± velutinous or villous [hispid, puberulent, glabrous], hairs often purplish). Stems usually 1, weakly erect, spreading, or clambering (branched). Leaves [basal and/or] cauline; alternate; petiolate (petiole bases sometimes expanded, weakly clasping) or sessile; blades pinnately nerved, ovate or elliptic to rhombic [oblanceolate or lanceolate to linear], margins [entire or subentire] toothed [coarsely pinnate], faces velutinous to villous [glabrous, hispid, puberulent]. Heads discoid, usually in corymbiform or paniculiform arrays, sometimes borne singly. Calyculi of 3–8+ bractlets. Involucres cylindric to campanulate [urceolate], [3–]8–12[–15+] mm diam. Phyllaries persistent, [8] ± 13 in (1–)2+ series, erect (reflexed in fruit), distinct (margins interlocking), linear, subequal, margins scarious. Receptacles flat, foveolate (knobby in fruit), epaleate. Ray florets 0. Disc florets [20–]30–80+, bisexual, fertile; corollas yellow or orange to brick-red [purplish, ochroleucous, or white], tubes longer than funnelform throats, lobes 5, erect or reflexed, deltate to lanceolate; style branches stigmatic in 2 lines, apices with (orange or reddish) ± filiform appendages (hispidulous, 1–2 mm). Cypselae ± columnar or prismatic, 5–10-angled or -ribbed, glabrous [hairy]; pappi persistent or fragile, of 60–80+, white, smooth or barbellulate bristles. x = 10.
Distribution
tropical Asia, Africa (including Madagascar), sw Pacific Islands, Australia.
Discussion
Species ca. 40 (1 in the flora).
Some species of Gynura are important in the horticultural trade; abundant literature is accessible through gardening compendia.
Selected References
None.