Difference between revisions of "Helianthus divaricatus Linnaeus (Q2753)"
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Latest revision as of 12:52, 24 June 2022
Helianthus divaricatus is a taxon with the rank species within the genus Helianthus
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Helianthus divaricatus Linnaeus
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Helianthus divaricatus is a taxon with the rank species within the genus Helianthus
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taxon/id/Helianthus divaricatus Linnaeus
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Helianthus divaricatus Linnaeus
Helianthus divaricatus
Linnaeus
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
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CA-ON
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Newmaster, S.G., A. Lehela, M.J. Oldham, P.W.C. Uhlig & S. McMurray. 1998. Ontario Plant List. Ontario Forest Research Institute, Sault Ste. Marie, Ontario. Forest Information Paper No. 123. 550 pp.
CA-QC
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Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.
CA-ON
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CA-QC
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US-AL
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US-AR
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US-CT
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US-DE
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US-DC
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US-FL
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US-GA
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US-IL
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US-IN
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US-IA
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US-KY
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US-LA
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US-ME
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US-MD
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US-MA
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US-MI
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US-MS
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US-MO
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US-NH
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US-NJ
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US-NY
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US-NC
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US-OH
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US-OK
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US-PA
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US-RI
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US-SC
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US-TN
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US-VT
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US-VA
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US-WV
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US-WI
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10–900+ m
10 meter
900 meter
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Stems erect, usually glabrous, rarely ± hairy (often glaucous).
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blades (light to dark green, sometimes whitish abaxially, 3-nerved at bases) lanceolate to lanceovate, 6–15 × 1–5 cm, bases rounded to cordate, margins subentire to serrate, abaxial faces sparsely hispid to hispidulous, glanddotted.
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Peduncles 0.5–9 cm.
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Involucres hemispheric, 10–15 mm diam.
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Phyllaries 18–25, lanceolate, lance-linear, or lanceovate, 6–12 × 2–2.5 mm, (margins ciliate) apices acuminate to attenuate, abaxial faces hispidulous to glabrate, not glanddotted.
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Paleae 5–8 mm, 3-toothed (apices ciliate).
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Ray-florets 8–12;
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laminae 15–30 mm.
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Disc-florets 40+;
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corollas 4.2–5.5 mm, lobes yellow;
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anthers usually dark-brown to black, appendages yellow.
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Cypselae 3–3.6 mm, glabrate;
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pappi of 2 aristate scales 2.2–2.5 mm. 2n = 34.
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