Holodiscus (K. Koch) Maximowicz (Q4411)

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Holodiscus is a taxon with the rank genus within the tribe Spiraeeae
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Holodiscus (K. Koch) Maximowicz
Holodiscus is a taxon with the rank genus within the tribe Spiraeeae

    Statements

    taxon/id/Holodiscus (K. Koch) Maximowicz
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    Holodiscus (K. Koch) Maximowicz
    Holodiscus
    (K. Koch) Maximowicz
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    North America
    Mexico
    Central America (Costa Rica)
    Central America (Guatemala)
    Central America (Honduras)
    South America (Colombia)
    South America (Venezuela)
    Shrubs, spreading to densely compact, (2–) 3–30 (–60) dm.
    Stems 1–10+, erect to arching;
    bark gray, exfoliating, periderm reddish to nearly black;
    shoots 3 types: long strongly angled or pleated 1st year, short, and water-sprout;
    glabrous, glabrate, downy, canescent, or pilose-tomentose.
    Leaves deciduous, cauline, alternate, dimorphic with shoot type, those of short-shoots in fascicles of 3–8, simple;
    petiole absent or present, distinct, sometimes obscured by decurrent leaf base;
    blade ± ovate, rhombic, trullate to broadly trullate, broadly obovate, or obtrullate, 1–10 cm, membranaceous to chartaceous, sometimes coriaceous, margins flat, usually serrate, sometimes doubly serrate, venation pinnate, simple-craspedodromous, abaxial surface glabrous, glabrate, pilose to villous, tomentose, or sericeous, sometimes sessile or stipitate-glandular, granular deposits present or absent, adaxial glabrous, glabrate, puberulent, pubescent, short-hirsute, velutinous, villous, sessile or stipitate-glandular or eglandular.
    Inflorescences terminal on long-shoots, erect or pendulous, 10–100+-flowered, panicles, glabrate, puberulent, villous, or tomentose hairs golden, tan, or white, stipitate or sessile-glandular or absent;
    bracts absent or subtending inflorescence branches;
    bracteoles present.
    Pedicels present.
    Flowers appearing after leaves, 2–6 mm diam.;
    epicalyx bractlets 0;
    hypanthium patelliform to shallowly crateriform, 1.5–5 mm diam.;
    sepals 5, erect to spreading or slightly reflexed, triangular to elliptic-ovate or deltate;
    petals 5, usually white, sometimes pink-tinged, rarely pink, ovate to elliptic;
    stamens 15–20, equal to or longer than petals, with prominent, raised nectar disc proximal to inner rim, exterior puberulent to tomentose, sometimes sessile-glandular;
    torus inconspicuous;
    carpels 5, adnate to hypanthium base, hirsute and hispid, styles terminal, stigmas 2-lobed;
    ovules 2 (1 aborted).
    Fruits aggregated achenes, 5, laterally flattened, inverted dolabriform, with abaxial edge strongly convex, adaxial straight, 1–1.5 mm, hispid, hirsute, and often sessile or stipitate-glandular;
    hypanthium persistent;
    sepals persistent, erect;