Xanthisma grindelioides (Nuttall) D. R. Morgan & R. L. Hartman (Q2532)

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Xanthisma grindelioides is a taxon with the rank species within the genus Xanthisma
Language Label Description Also known as
English
Xanthisma grindelioides (Nuttall) D. R. Morgan & R. L. Hartman
Xanthisma grindelioides is a taxon with the rank species within the genus Xanthisma

    Statements

    taxon/id/Xanthisma grindelioides (Nuttall) D.R. Morgan & R.L. Hartman
    0 references
    Xanthisma grindelioides (Nuttall) D.R. Morgan & R.L. Hartman
    Xanthisma grindelioides
    (Nuttall) D.R. Morgan & R.L. Hartman
    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
    Xanthisma grindelioides
    (Nuttall) D.R. Morgan & R.L. Hartman
    rayless tansy-aster (English)
    toothed iron plant (English)
    western aster (English)
    goldenweed (English)
    gumweed aster (English)
    haplopappe fausse-grindélie (French)
    Goldenweed (English)
    gumweed aster (English)
    Subshrubs, 3–35 cm (tufted or densely cespitose, often mound-forming);
    caudices much branched, taproot 2–20+ cm.
    Stems 10–30+, simple or branched in distal 1/3, moderately stout to stout, not wiry, hairy or minutely stipitate-glandular.
    Leaves: basal often persistent;
    cauline evenly spaced, blades oblong, obovate, lanceolate to spatulate or narrowly ovate to obovate, 7–60 × 2–13 mm, gradually reduced distally, margins usually evenly coarsely serrate to serrulate, teeth 4–16 per side, each tipped with white bristle 0.5–4 mm, faces sparsely to densely hairy (hairs subappressed), often minutely stipitate-glandular.
    sometimes bracteate.
    Involucres hemispheric to campanulate, 0.5–1 × 0.6–1.5 cm.
    Phyllaries in 3–5 series, oblong to broadly lanceolate, 2–9 mm, apices obtuse to acute, tipped by white seta, faces usually densely stipitate-glandular.
    Disc-florets 15–50+;
    corollas 5–8.5 mm.
    Cypselae oblong to narrowly obovoid, 2–3.5 mm, ribs 12–24, densely whitish to tawny hairy;
    pappi whitish to tawny, 3–7 mm, a few abaxial bristles to 1/3 of longest.