Leucanthemum Miller (Q2129)

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Leucanthemum is a taxon with the rank genus within the subtribe Leucantheminae
Language Label Description Also known as
English
Leucanthemum Miller
Leucanthemum is a taxon with the rank genus within the subtribe Leucantheminae

    Statements

    taxon/id/Leucanthemum Miller
    0 references
    Leucanthemum Miller
    Leucanthemum
    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
    mostly temperate Europe (some widely cultivated and sparingly adventive)
    Stems usually 1, erect, simple or branched, glabrous or hairy (hairs basifixed).
    petiolate or sessile;
    blades obovate to lanceolate or linear, often 1 [–2+] -pinnately lobed or toothed, ultimate margins dentate or entire, faces glabrous or sparsely hairy.
    Heads usually radiate, rarely discoid, borne singly or in 2s or 3s.
    Involucres hemispheric or broader, 12–35+ mm diam.
    Phyllaries persistent, 35–60+ in 3–4+ series, distinct, ovate or lanceovate to oblanceolate, unequal, margins and apices (colorless or pale to dark-brown) scarious (tips not notably dilated; abaxial faces glabrous or sparsely hairy).
    Receptacles convex, epaleate.
    Ray-florets usually 13–34+, rarely 0, pistillate, fertile;
    corollas white (drying pinkish), laminae ovate to linear.
    Disc-florets 120–200+, bisexual, fertile;
    corollas yellow, tubes ± cylindric (proximally swollen, becoming spongy in fruit), throats campanulate, lobes 5, deltate (without resin sacs).
    Cypselae ± columnar to obovoid, ribs ± 10, faces glabrous (pericarps with myxogenic cells on ribs and resin sacs between ribs; embryo-sac development monosporic);