Arnoglossum Rafinesque (Q2874)

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Arnoglossum is a taxon with the rank genus within the tribe Senecioneae
Language Label Description Also known as
English
Arnoglossum Rafinesque
Arnoglossum is a taxon with the rank genus within the tribe Senecioneae

    Statements

    taxon/id/Arnoglossum Rafinesque
    0 references
    Arnoglossum Rafinesque
    Arnoglossum
    Rafinesque
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
    accepted
    Indian plantain (English)
    e North America
    Stems usually 1, erect (unbranched proximal to heads).
    petiolate or sessile;
    blades palmately nerved, mostly cordate, deltate, elliptic, hastate, ovate, or reniform, sometimes lanceolate or lance-linear, margins entire, ± dentate to denticulate, sinuate, or lobed, faces usually glabrous.
    Heads discoid, in corymbiform arrays.
    Involucres cylindric to turbinate, 2.5–5 mm diam.
    Phyllaries persistent, 5 in 1–2 series, erect (spreading in fruit), distinct, ovate or oblong to linear (midveins sometimes winged), ± equal, margins scarious (hyaline).
    Receptacles flat or convex (usually with central cusp 0.5–2 mm), foveolate, epaleate.
    Disc-florets 5, bisexual, fertile;
    corollas usually creamy or greenish white, rarely purplish distally, tubes longer than to equaling campanulate to funnelform throats, lobes 5, spreading or recurved, lanceolate;
    style-branches: stigmatic areas continuous, apices truncate or truncate-penicillate (appendages essentially 0).
    Cypselae clavate, cylindric, ellipsoid, or ± fusiform, (4–) 10–15-ribbed or nerved, glabrous (resinous);
    pappi persistent, fragile, or readily falling, of 100–120+, white, smooth or barbellate bristles.