Leucanthemella Tzvelev in V. L. Komarov et al. (Q2088)

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Leucanthemella is a taxon with the rank genus within the subtribe Artemisiinae
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English
Leucanthemella Tzvelev in V. L. Komarov et al.
Leucanthemella is a taxon with the rank genus within the subtribe Artemisiinae

    Statements

    taxon/id/Leucanthemella Tzvelev
    0 references
    Leucanthemella Tzvelev
    Leucanthemella
    Tzvelev
    FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
    accepted
    Stems usually 1, erect, usually branched distally, ± hairy (hairs basi or medifixed).
    blades oblong to lanceolate [pinnate] (bases sometimes ± clasping), margins often with 2–4 lobes proximally, serrate distally, faces hairy or glabrous, gland-dotted.
    Heads radiate, borne singly or in 2s or 3s.
    Involucres hemispheric or broader, 12–25+ mm diam.
    Phyllaries persistent, 30–50+ in 2–3+ series, distinct, ovate or obovate to oblanceolate (not keeled abaxially), margins and apices scarious (tips not notably dilated).
    Receptacles convex, epaleate.
    Ray-florets 21–34+, styliferous and sterile;
    corollas usually white, sometimes reddish, laminae ± ovate to linear.
    Disc-florets 100–150+, bisexual, fertile;
    corollas usually yellow, sometimes reddish, tubes ± cylindric (± gland-dotted), throats campanulate, lobes 5, deltate (without resin sacs).
    Cypselae ± columnar, ribs 7–12, faces probably glabrous (pericarps without myxogenic cells or resin sacs);