View source for Tagetes ← Tagetes You do not have permission to edit this page, for the following reason: The action you have requested is limited to users in the group: Users. You can view and copy the source of this page. {{Treatment/ID |accepted_name=Tagetes |accepted_authority=Linnaeus |publications={{Treatment/Publication |title=Sp. Pl. |place=2: 887. 1753 |year=1753 }}, {{Treatment/Publication |title=Gen. Pl. ed. |place=5, 378. 1754 |year=1754 }} |common_names=Marigold |basionyms= |synonyms= |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Pectidinae;Tagetes |hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Pectidinae]]</div><div class="higher-taxon"><small>genus</small>[[Tagetes]]</div></div> |etymology=Etymology unknown; possibly from New Latin Tages, an Etruscan god |volume=Volume 21 |mention_page=page 222 |treatment_page=page 235 }}<!-- --><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> perennials, subshrubs, or shrubs [perennials], mostly 10–80(–200) cm. <b>Stems</b> erect, branched distally or ± throughout. <b>Leaves</b> cauline; mostly opposite (distal sometimes alternate); petiolate or sessile; blades mostly lanceolate to oblanceolate overall, usually 1–3-pinnately lobed or -pinnatisect, ultimate margins toothed or entire, faces glabrous or hairy (oil-glands scattered and/or submarginal). <b>Heads</b> radiate or discoid, borne singly or in ± corymbiform arrays. <b>Calyculi</b> 0. <b>Involucres</b> narrowly cylindric or fusiform to turbinate or broadly campanulate, 1–12+ mm diam. <b>Phyllaries</b> persistent, 3–21+ in 1–2 series (connate to 7/8+ their lengths, usually streaked and/or dotted with oil-glands). <b>Receptacles</b> convex to conic, smooth or finely pitted, epaleate. <b>Ray</b> florets 0 or 1–8(–13+) (to 100+ in “double” cultivars), pistillate, fertile (except “double” cultivars); corollas yellow or orange, red-brown (with or without yellow/orange), or white. <b>Disc</b> florets 6–120+, bisexual, fertile; corollas greenish yellow to orange, sometimes tipped with red or red-brown, tubes much longer than or about equaling funnelform throats, lobes 5, deltate to lance-linear (equal or 2 sinuses deeper than others). <b>Cypselae</b> narrowly obpyramidal or fusiform-terete, sometimes weakly flattened, glabrous or hairy; pappi persistent, of 2–5(–10) dissimilar, distinct or connate scales in ± 1 series: 0–5+ oblong to lanceolate, erose-truncate or laciniate plus 0–2(–5) longer, subulate to aristate. <b>x</b> = 12.</span><!-- -->{{Treatment/Body |distribution=Tropical and warm-temperate America;especially Mexico;introduced in Old World. |discussion=<p>Species 40+ (4 in the flora).</p><!-- --><p>Some <i>Tagetes</i> species (e.g., <i>T. erecta</i>) produce nematicidal thiophenes in their roots and have been shown to be effective controls for nematodes in diverse crops (cf., http://www.ncagr.com/agronomi/nnote1.htm).</p><!-- --><p>Reports of “<i>Tagetes</i> minima L.” for Pennsylvania (cf. http://plants.usda.gov) are evidently rooted in an error for <i>T. minuta</i>. Report of <i>T. pusilla</i> Kunth (= <i>T. filifolia</i> Lagasca) for Maryland (http://plants.usda.gov) was not verified for this treatment.</p> |tables= |references={{Treatment/Reference |id=neher1966a |text=Neher, R. T. 1966. Monograph of the Genus Tagetes (Compositae). Ph.D. thesis. Indiana University. }}{{Treatment/Reference |id=rydberg1915b |text=Rydberg, P. A. 1915. Tagetes. In: N. L. Britton et al., eds. 1905+. North American Flora.... 47+ vols. New York. Vol. 34, pp. 148–159. }}{{Treatment/Reference |id=soule1993a |text=Soule, J. A. 1993. Systematics of Tagetes (Asteraceae–Tageteae) (Mexico, Argentina). Ph.D. thesis. University of Texas. }} }}<!-- --><div class="treatment-key"> ==Key== <div class="treatment-key-group"> {| class="wikitable fna-keytable" |-id=key-0-1 |1 |Leaf lobes (or simple blades) linear to filiform, 10–25(–35+) × 0.5–1.5 mm |[[Tagetes micrantha|Tagetes micrantha]] |-id=key-0-1 |1 |Leaf lobes lance-elliptic or lanceolate to lance-linear, 12–25(–50+) × (2–)4–8(–12+) mm |[[#key-0-2| > 2]] |-id=key-0-2 |2 |Perennials, subshrubs, or shrubs |[[Tagetes lemmonii|Tagetes lemmonii]] |-id=key-0-2 |2 |Annuals |[[#key-0-3| > 3]] |-id=key-0-3 |3 |Heads in ± corymbiform clusters; peduncles 1–5+ mm; involucres 7–10+ × 1.5–3 mm |[[Tagetes minuta|Tagetes minuta]] |-id=key-0-3 |3 |Heads borne ± singly; peduncles 30–100(–150+) mm; involucres 10–22 × (3–)5–12+ mm |[[Tagetes erecta|Tagetes erecta]] |} </div></div><!-- -->{{#Taxon: name=Tagetes |author=John L. Strother |authority=Linnaeus |rank=genus |parent rank=subtribe |synonyms= |basionyms= |family=Asteraceae |distribution=Tropical and warm-temperate America;especially Mexico;introduced in Old World. |reference=neher1966a;rydberg1915b;soule1993a |publication title=Sp. Pl.;Gen. Pl. ed. |publication year=1753;1754 |special status= |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_574.xml |tribe=Asteraceae tribe Heliantheae |subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae |genus=Tagetes }}<!-- -->[[Category:Treatment]][[Category:Asteraceae (tribe Heliantheae) subtribe Pectidinae]] Templates used on this page: Template:Asteraceae (view source) Template:Treatment/AuthorLink (view source) Template:Treatment/Body (view source) Template:Treatment/Body/Maps (view source) Template:Treatment/ID (view source) Template:Treatment/Publication (view source) Template:Treatment/Reference (view source) Return to Tagetes.