Eutrochium fistulosum (Barratt) E. E. Lamont (Q2603)

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Eutrochium fistulosum is a taxon with the rank species within the genus Eutrochium
Language Label Description Also known as
English
Eutrochium fistulosum (Barratt) E. E. Lamont
Eutrochium fistulosum is a taxon with the rank species within the genus Eutrochium

    Statements

    taxon/id/Eutrochium fistulosum (Barratt) E.E. Lamont
    0 references
    Eutrochium fistulosum (Barratt) E.E. Lamont
    Eutrochium fistulosum
    (Barratt) E.E. Lamont
    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
    Eutrochium fistulosum
    eupatoire fistuleuse (French)
    hollow Joe Pye weed (English)
    trumpetweed (English)
    Trumpetweed (English)
    hollow joepyeweed (English)
    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.
    Flowering late summer–early fall.
    wet lowlands
    alluvial woods
    streams
    moist meadows
    marshes
    saturated
    flooded organic soils
    open sun
    partial shade
    Plants 60–350+ cm.
    Stems usually purple throughout, sometimes greenish or purple-spotted, hollow proximally, usually glabrous proximally (rarely pubescent toward bases when young), ± glandular-puberulent distally and among heads (glaucous throughout, at least when fresh).
    petioles (5–) 10–30 (–50) mm, glabrous;
    blades pinnately veined, narrowly to broadly lanceolate, mostly (8–) 12–25 (–28) × (1.5–) 2–6 (–9) cm, bases gradually tapered, margins finely serrate (teeth rounded, blunt), abaxial faces sparingly and minutely ± scabrellous to glabrate, adaxial faces glabrous or sparingly puberulent.
    Heads in convex to rounded (dome-shaped), compound corymbiform arrays (ultimately broadly cylindric).
    Involucres often purplish, 6.5–9 × 2.5–5 mm.
    Phyllaries glabrous or outer with hairs on midveins.
    Florets (4–) 5–7;
    corollas usually pale pinkish or purplish, 4.5–6 mm.
    Cypselae 3–4.5 mm. 2n = 20.