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Tagetes
Family: Asteraceae
Tagetes image
Leslie Landrum
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John L. Strother in Flora of North America (vol. 21)
Annuals, perennials, subshrubs, or shrubs [perennials], mostly 10-80(-200) cm. Stems erect, branched distally or ± throughout. Leaves 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). Heads radiate or discoid, borne singly or in ± corymbiform arrays. Calyculi 0. Involucres narrowly cylindric or fusiform to turbinate or broadly campanulate, 1-12+ mm diam. Phyllaries persistent, 3-21+ in 1-2 series (connate to 7/8+ their lengths, usually streaked and/or dotted with oil-glands). Receptacles convex to conic, smooth or finely pitted, epaleate. Ray 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. Disc 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). Cypselae 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. x = 12. 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). 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.

Vascular plants of NE US and adjacent Canada
Heads mostly radiate, the rays few (except in double forms), pistillate and fertile, mostly yellow to red-orange; invol bracts uniseriate, 3-10, united to near the apex and each with a row of evident embedded oil-glands on each side; receptacle flat, generally small, naked; disk-fls tubular and perfect; style-branches ±elongate, flattened, with introrsely marginal stigmatic lines and a short, often expanded, hirsutulous appendage; achenes slender and elongate; pappus of several very unequal, often ±connate scales, generally 1 or 2 elongate and acute or awn-tipped; glabrous, aromatic herbs with conspicuously gland-dotted, usually pinnatifid lvs, at least the lower opposite. 30, warm New World.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Tagetes campanulata
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not available
Tagetes coronopifolia
Image of Tagetes coronopifolia
Tagetes elongata
Image of Tagetes elongata
Tagetes epapposa
Image of Tagetes epapposa
Tagetes erecta
Image of Tagetes erecta
Tagetes filifolia
Image of Tagetes filifolia
Tagetes foetidissima
Image of Tagetes foetidissima
Tagetes hartwegii
Image of Tagetes hartwegii
Tagetes jaliscensis
Image of Tagetes jaliscensis
Tagetes lacera
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Tagetes lemmonii
Image of Tagetes lemmonii
Tagetes linifolia
Image of Tagetes linifolia
Tagetes lucida
Image of Tagetes lucida
Tagetes lunulata
Image of Tagetes lunulata
Tagetes mandonii
Image of Tagetes mandonii
Tagetes micrantha
Image of Tagetes micrantha
Tagetes microglossa
Image of Tagetes microglossa
Tagetes minima
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Tagetes minuta
Image of Tagetes minuta
Tagetes mulleri
Image of Tagetes mulleri
Tagetes multiflora
Image of Tagetes multiflora
Tagetes nelsonii
Image of Tagetes nelsonii
Tagetes oaxacana
Image of Tagetes oaxacana
Tagetes parryi
Image of Tagetes parryi
Tagetes patula
Image of Tagetes patula
Tagetes pringlei
Image of Tagetes pringlei
Tagetes pusilla
Image of Tagetes pusilla
Tagetes stenophylla
Image of Tagetes stenophylla
Tagetes subulata
Image of Tagetes subulata
Tagetes subvillosa
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Tagetes terniflora
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Tagetes triradiata
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Tagetes wislizeni
Image of Tagetes wislizeni
Tagetes zypaquinensis
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Tagetes zypaquirensis
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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