Doellingeria Nees (Q2162)

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Doellingeria is a taxon with the rank genus within the tribe Astereae
Language Label Description Also known as
English
Doellingeria Nees
Doellingeria is a taxon with the rank genus within the tribe Astereae

    Statements

    taxon/id/Doellingeria Nees
    0 references
    Doellingeria Nees
    Doellingeria
    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
    Tall flat-topped aster (English)
    e North America
    Stems erect, simple, glabrous or sparsely strigose, eglandular.
    basal withering, oblanceolate;
    proximal cauline sometimes withering, reduced;
    mid cauline blades (1-nerved, venation brochidodromous) lanceolate to elliptic (little reduced distally, much reduced in arrays), margins entire, faces glabrate to moderately short-woolly or strigose.
    Heads radiate, (3–300) in flat-topped corymbiform arrays.
    Involucres cylindro-campanulate (3–6.8 ×) 1.8–4.6 mm.
    Phyllaries 16–40 in 3–5 series (erect), 1-nerved, (midnerves raised, sometimes brownish and translucent, not keeled), lanceolate to deltate, unequal, pliable to rigid, margins narrowly scarious, dark green zone restricted to narrow bands along midnerves, apices rounded, glabrate to moderately strigose, sometimes strigose distally.
    Receptacles slightly convex, pitted, epaleate.
    Ray-florets 2–10 (–16), pistillate, fertile;
    Disc-florets 4–25 (–50), bisexual, fertile;
    corollas pale-yellow, ampliate, tubes shorter than throats, lobes 5, often spreading to reflexed, deltate (2–4.2 mm);
    style-branch appendages narrowly lanceolate (papillate on at least distal 1/2).
    Cypselae terete to narrowly obconic, sometimes somewhat compressed (bases distinctly stipitate), 4–10-ribbed (ribs darkened, translucent, sometimes resinous), glabrous, eglandular, sometimes resinous;
    pappi persistent in 4 series, whitish outer of linear to subulate, short (5–15 % length inner) scales, 3 inner of 60–90 white to tan, barbellate bristles, outer apically attenuate, innermost clavate.