Schoenoplectus saximontanus (Fernald) J. Raynal (Q4578)

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Schoenoplectus saximontanus is a synonym of Schoenoplectiella saximontana (Fernald) Lye
Language Label Description Also known as
English
Schoenoplectus saximontanus (Fernald) J. Raynal
Schoenoplectus saximontanus is a synonym of Schoenoplectiella saximontana (Fernald) Lye

    Statements

    taxon/id/Schoenoplectus saximontanus (Fernald) J. Raynal
    0 references
    taxon synonym
    Schoenoplectus saximontanus
    Rocky Mountain bulrush (English)
    to emergent
    freshwater ponds
    ditches
    sandy areas
    Mexico (San Luis Potosí)
    Mexico (Tamaulipas)
    Plants annual or perennial;
    rhizomes 1 mm diam.
    Culms often arching to decumbent, cylindric, ridged when dry, 0.09–0.65 m × 0.5–1.5 mm.
    Leaves 3–4, 1 (–2) cauline;
    blades 1–2, proximally thickly C-shaped in cross-section, distally flat, rudimentary to longer than sheath, 1–200 × 0.2–1 mm, smooth or margins distally spinulose.
    Inflorescences capitate or of 1 spikelet or with 1 or 2 branches to 15 mm;
    proximal bract erect, like leaf-blades, 5–15 cm.
    scales pale orangebrown to colorless, midrib region sometimes greenish, ovate, 2.2–3 (–3.5) × 1.5 mm, awn sparsely spinulose, margins ciliolate, midrib keeled distally, apex entire, rounded, awn 0.2–0.5 mm or to 1 mm on proximal scale.
    Flowers: perianth absent;
    anthers 0.3–0.5 mm;
    Spikelet achenes blackish brown, nearly equilaterally sharply trigonous, ovoid to obovoid, 1.3–1.8 × 1–1.4 mm, with 10–20 mostly sharp ridges;
    Amphicarpic achenes trigonous, 2.2–3 mm including stout, tapered beak 0.3 mm, with many obscure to evident horizontal ridges.