Helianthus tuberosus Linnaeus (Q2760)
Helianthus tuberosus is a taxon with the rank species within the genus Helianthus
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| English |
Helianthus tuberosus Linnaeus
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Helianthus tuberosus is a taxon with the rank species within the genus Helianthus
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Statements
taxon/id/Helianthus tuberosus Linnaeus
0 references
Helianthus tuberosus Linnaeus
Helianthus tuberosus
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
1 reference
CA-BC
present
introduced
1 reference
Klinkenberg, B. (ed.). 2010+. E-Flora BC: Electronic Atlas of the Plants of British Columbia. Lab. for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver, B.C. http://www.eflora.bc.ca http://www.eflora.bc.ca/
CA-MB
1 reference
Manitoba Checklist, 2002
CA-NB
present
introduced
1 reference
Hinds, H.R. 2000. Flora of New Brunswick : a manual for the identification of the vascular plants of New Brunswick. 2nd edition. Biology Department, University of New Brunswick, Fredericton. 699 pp.
CA-NS
present
introduced
1 reference
Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
CA-ON
1 reference
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-PE
present
introduced
1 reference
Catling, P.M., D.S. Erskine & R.B. MacLaren. 1985. The Plants of Prince Edward Island with new records, nomenclatural changes, and corrections and deletions. Agriculture Canada, Research Branch, Ottawa. Publication 1798. 272 pp.
CA-QC
present
introduced
1 reference
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-SK
1 reference
Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-MB
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CA-NB
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CA-NS
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CA-ON
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CA-PE
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CA-QC
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CA-SK
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US-AL
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US-AR
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US-CO
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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-ID
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US-IL
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US-IN
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US-IA
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US-KS
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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-MN
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US-MS
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US-MO
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US-NE
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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-ND
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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-SD
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US-TN
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US-TX
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US-UT
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US-VT
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US-VA
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US-WA
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US-WV
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US-WI
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US-WY
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Stems erect, scabro-hispid to hirsute (sometimes glaucous).
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Leaves mostly cauline;
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opposite or alternate proximally, usually alternate distally;
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petioles 2–8 cm (often ± winged);
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blades (3-nerved from near bases) lanceolate to ovate, 10–23 × 7–15 cm, bases broadly to narrowly cuneate, margins entire or serrate (flat), abaxial faces puberulent or hirsutulous to tomentulose and glanddotted (abaxial) or ± scabrous (adaxial).
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Peduncles 1–15 cm.
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Involucres hemispheric, (10–25 ×) 8–12 mm.
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Phyllaries (often dark green, drying nearly black) 22–35 (bases appressed, apices ± spreading, sometimes reflexed in fruit), lanceolate, 8.5–15 × 2–4 mm (subequal), (margins ciliate) apices acuminate, abaxial faces hispidulous or puberulent, glanddotted.
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Paleae 8–9 mm, 3-toothed (apices hairy).
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Ray-florets 10–20;
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laminae 25–40 mm.
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Disc-florets 60+;
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corollas 6–7 mm, lobes yellow;
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anthers dark-brown or black, appendages dark or yellowish.
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Cypselae 5–7 mm, glabrous or distally hairy;
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pappi of 2 aristate scales 1.9–3 mm plus 0–1 deltate scales 0.5–0.8 mm. 2n = 102.
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