Difference between revisions of "Tagetes erecta"
Sp. Pl. 2: 887. 1753.
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Pectidinae |
Revision as of 22:01, 27 May 2020
Annuals, 10–120+ cm. Leaf blades 30–120(–250+) mm overall, principal lobes/leaflets 9–25, lanceolate to lance-linear, 15–25(–45+) × 3–8(–12+) mm. Heads borne ± singly. Peduncles 30–100(–150+) mm. Involucres 10–22+ × (3–)5–12+ mm. Ray florets (3–)5–8+ (to 100+ in “double” cultivars); laminae yellow to orange, red-brown (sometimes particolored: yellow/red-brown), or white (some cultivars), ± flabellate to oval-quadrate, (2–)12–18(–25+) mm. Disc florets (10–)50–120+; corollas 7–12+ mm. Cypselae 6–11 mm; pappi of 0–2, ± subulate-aristate scales 6–12+ mm plus 2–4 distinct or connate, linear-oblong, ± erose scales 2–6+ mm. 2n = 24, 48.
Phenology: Flowering ± year round.
Habitat: Disturbed sites
Elevation: 0–1000+ m
Distribution
Ala., Ark., Calif., Conn., Fla., Ill., Kans., Ky., La., Md., Mass., Mo., N.Y., N.C., Ohio, Okla., Pa., S.C., Utah, Vt., Va., Wis., Wyo., Mexico.
Discussion
Cultivars of Tagetes erecta are widely grown in gardens and, commercially, for cut flowers. They often persist after abandoned plantings. Tetraploid plants (2n = 48) with smaller involucres and wholly or partially red-brown corollas included here in T. erecta have been called T. patula by some botanists.
Selected References
None.