View source for Tagetes

{{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 Tagetes species (e.g., T. erecta) 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 “Tagetes minima L.” for Pennsylvania (cf. http://plants.usda.gov) are evidently rooted in an error for T. minuta. Report of T. pusilla Kunth (= T. filifolia 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://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/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]]