Helianthus tuberosus Linnaeus (Q2760)

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Helianthus tuberosus is a taxon with the rank species within the genus Helianthus
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Helianthus tuberosus Linnaeus
Helianthus tuberosus is a taxon with the rank species within the genus Helianthus

    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
    topinambour (French)
    hélianthe tubéreux (French)
    Jerusalem artichoke (English)
    Jerusalem sunflower (English)
    Iroquois potato (English)
    Jerusalem artichoke (English)
    topinambour (English)
    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/
    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.
    1 reference
    Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
    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.
    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.
    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.
    1 reference
    Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
    cultivated and adventive in Europe
    Flowering late summer–fall.
    roadsides
    fields
    waste areas
    0–1000(–1500) m
    Stems erect, scabro-hispid to hirsute (sometimes glaucous).
    Leaves mostly cauline;
    opposite or alternate proximally, usually alternate distally;
    petioles 2–8 cm (often ± winged);
    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).
    Heads 3–15.
    Peduncles 1–15 cm.
    Involucres hemispheric, (10–25 ×) 8–12 mm.
    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.
    Paleae 8–9 mm, 3-toothed (apices hairy).
    Ray-florets 10–20;
    laminae 25–40 mm.
    Disc-florets 60+;
    corollas 6–7 mm, lobes yellow;
    anthers dark-brown or black, appendages dark or yellowish.
    Cypselae 5–7 mm, glabrous or distally hairy;
    pappi of 2 aristate scales 1.9–3 mm plus 0–1 deltate scales 0.5–0.8 mm. 2n = 102.