Physocarpus capitatus (Pursh) Kuntze (Q4448)

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Physocarpus capitatus is a taxon with the rank species within the genus Physocarpus
Language Label Description Also known as
English
Physocarpus capitatus (Pursh) Kuntze
Physocarpus capitatus is a taxon with the rank species within the genus Physocarpus

    Statements

    taxon/id/Physocarpus capitatus (Pursh) Kuntze
    0 references
    Physocarpus capitatus (Pursh) Kuntze
    Physocarpus capitatus
    (Pursh) Kuntze
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Physocarpus capitatus
    physocarpe à boules (French)
    Pacific ninebark (English)
    Pacific nine-bark (English)
    1 reference
    Douglas, G.W., G.B. Straley, D.V. Meidinger & J. Pojar. 1998. Illustrated Flora of British Columbia. B.C. Ministry of Environment, Lands & Parks and B.C. Ministry of Forests. Victoria. Crown Publications. 8 vols.
    Flowering May–Jul; fruiting Jul–Aug.
    sunny slopes
    higher elevations
    stream
    lake margins
    moist woods
    lower elevations
    Shrubs, to 45 (–60) dm.
    Stems erect, sometimes suckering, angled, glabrous or finely stellate-hairy.
    Leaves: stipules linear to narrowly elliptic, 4 × 0.5–2 mm;
    petiole 1–2 (–3) cm;
    blade broadly ovate to obovate, (3–) 4–8 cm, usually as wide as long, base rounded to truncate or slightly cordate, 3-lobed or 5-lobed, margins irregularly crenate to doubly serrate, apex obtuse to acute, abaxial surface paler, glabrous or more densely stellate-hairy, adaxial glabrous or sparsely stellate-hairy.
    Inflorescences 30–50-flowered, dense, hemispheric racemes, 3 cm diam., sometimes compound with some proximal pedicels becoming secondary peduncles;
    bracts narrowly elliptic to spatulate, 4 × 2 mm, apex acute or erose-dentate, faces glandular.
    Pedicels 1–1.5 cm, densely stellate-hairy.
    Flowers 5–8 mm diam.;
    hypanthium cupshaped, 2 mm, densely stellate-hairy;
    sepals pale green to white, darker in center, triangular, 2–3 mm, apex gland-tipped, surfaces densely stellate-hairy;
    petals white, broadly elliptic to orbiculate, 3–4 × 3–4 mm;
    stamens equal to or exceeding petals;
    carpels 3–5, connate basally, mostly glabrous, sometimes hairy (on ventral suture).
    Follicles 3–5, connate basally, shiny brown, ovoid, 5–7 mm (lengths slightly exceeding sepals), glabrous;
    styles 2.5–3 mm.
    Seeds 2 (–5), pyriform, 2.3–2.8 mm. 2n = 18.