Aruncus Linnaeus (Q4439)

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Aruncus is a taxon with the rank genus within the tribe Spiraeeae
Language Label Description Also known as
English
Aruncus Linnaeus
Aruncus is a taxon with the rank genus within the tribe Spiraeeae

    Statements

    taxon/id/Aruncus Linnaeus
    0 references
    Aruncus Linnaeus
    Aruncus
    Linnaeus
    FNA Editorial Committee. 2014. Flora of North America north of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York.
    accepted
    Goat’s-beard (English)
    bride’s-feathers (English)
    barbe-de-bouc (English)
    North America
    Eurasia
    temperate regions
    Herbs, perennial, clump-forming, 5–15 (–20) dm, herbage glabrous or sparsely to densely hairy, hairs simple, straight to curved, sometimes multicellular or glandular;
    rhizomatous, rhizomes thick, branching, woody;
    roots coarse, fibrous.
    Stems 1–5, erect, stout, simple, sometimes glaucous.
    Leaves deciduous, cauline, alternate, 2–3-irregularly ternate to odd-pinnate, equivalent to 2–3 pinnate;
    petiole present, relatively long, base 1/2 sheathing stems;
    blade broadly ovate, cauline reduced in size and complexity distally, 15–60 cm, thick to thin, leaflets 9–45, long-petiolulate, broadly ovate to narrowly lanceolate, margins flat, [serrate to] doubly serrate, venation pinnate.
    Inflorescences terminal, 500–2500-flowered, racemes forming panicles;
    bracteoles present hairs simple, glandular.
    Pedicels present.
    Flowers unisexual (plants dioecious, rarely polygamous), 3–4 mm diam.;
    epicalyx bractlets 0;
    hypanthium shallowly bowl-shaped, 0.5–1 mm, nectary ring inside with simple, glandular-hairs;
    sepals persistent, 5, spreading, triangular, margins entire;
    petals 5, white, obovate to elliptic, base cuneate;
    staminate: stamens (15–) 20 (–30) in 1 series (between calyx and nectar ring), longer than petals;
    pistillate: nectar ring scarcely developed, stamens rudimentary, carpels 3, free, glabrous, styles terminal;
    Fruits follicles, 3 (or 4), pedicels recurving, fruits inverted, retrorse, ovate-elongate, 1.5–5 mm, shining, glabrous, dehiscent along whole adaxial suture;
    hypanthium persistent;
    sepals persistent, spreading to appressed;
    styles persistent, forming a beak.
    Seeds 2–4, elongate, membranous, caudate at both ends, scalariform-reticulate, seed-coat loose.