Ageratina altissima (Linnaeus) R. M. King & H. Robinson (Q2588)

From Canadian Flora Commons
Jump to navigation Jump to search
Ageratina altissima is a taxon with the rank species within the genus Ageratina
Language Label Description Also known as
English
Ageratina altissima (Linnaeus) R. M. King & H. Robinson
Ageratina altissima is a taxon with the rank species within the genus Ageratina

    Statements

    taxon/id/Ageratina altissima (Linnaeus) R.M. King & H. Robinson
    0 references
    Ageratina altissima (Linnaeus) R.M. King & H. Robinson
    Ageratina altissima
    (Linnaeus) R.M. King & H. Robinson
    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
    (Linnaeus) R.M. King & H. Robinson
    white snakeroot (English)
    eupatoire rugueuse (French)
    White snakeroot (English)
    Stems ascending to erect, sometimes semiscandent, puberulent (hairs minute, crisped).
    petioles (5–) 10–30 (–50) mm;
    blades usually deltate-ovate to ovate or broadly lanceolate, sometimes ovatelanceolate, 4–11 (–13) × 2.5–8 (–9) cm, bases usually rounded to truncate or obtuse, sometimes cordate, margins coarsely and doubly incised-serrate, apices usually acuminate.
    Peduncles 1–5 mm, puberulent.
    Involucres 4–5 mm.
    Phyllaries: apices acute, abaxial faces glabrous or sparsely and finely villous.
    Corollas white, lobes sparsely short-villous.
    Cypselae glabrous.