Ambrosia trifida Linnaeus (Q2723)

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Ambrosia trifida is a taxon with the rank species within the genus Ambrosia
Language Label Description Also known as
English
Ambrosia trifida Linnaeus
Ambrosia trifida is a taxon with the rank species within the genus Ambrosia

    Statements

    taxon/id/Ambrosia trifida Linnaeus
    0 references
    Ambrosia trifida Linnaeus
    Ambrosia trifida
    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
    grande herbe à poux (French)
    ambroisie trifide (French)
    ambrosie trifide (French)
    great ragweed (English)
    giant ragweed (English)
    Giant ragweed (English)
    grande herbe à poux (English)
    1 reference
    Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
    1 reference
    Straley, G.B., D.V. Meidinger & G.W. Douglas. 1989-1994. The Vascular plants of British Columbia. BC. Ministry of Forests, Victoria. 4 vols.
    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
    Mexico (Chihuahua)
    Flowering Jul–Nov.
    waste places
    damp soils
    Leaves mostly opposite;
    petioles 10–30 (–70+) mm;
    blades rounded-deltate to ovate or elliptic, 40–150 (–250+) × 30–70 (–200+) mm, usually some blades palmately 3 (–5) -lobed, bases truncate to cuneate (sometimes decurrent onto petioles), margins usually toothed, rarely entire, abaxial and adaxial faces ± scabrellous and glanddotted.
    Pistillate heads clustered, proximal to staminates;
    Staminate heads: peduncles 1–3+ mm;
    involucres ± saucer-shaped, 2–4 mm diam., scabrellous (often with 1–3 black nerves);
    Burs: bodies ± pyramidal, 3–5 (–7+) mm, glabrous or glabrate, spines 4–5, ± distal, ± acerose, 0.5–1 mm, tips straight (bases ± decurrent as ribs).