Scirpus longii Fernald (Q3376)

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Scirpus longii is a taxon with the rank species within the genus Scirpus
Language Label Description Also known as
English
Scirpus longii Fernald
Scirpus longii is a taxon with the rank species within the genus Scirpus

    Statements

    taxon/id/Scirpus longii Fernald
    0 references
    Scirpus longii Fernald
    Scirpus longii
    Fernald
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    scirpe de Long (French)
    Long's bulrush (English)
    0–200 m
    Plants spreading ± evenly over substrate;
    rhizomes thick, elongate rhizomes.
    Culms: fertile ones upright or nearly so;
    Leaves 4–7 per culm;
    sheaths of proximal leaves green or brownish;
    proximal blades and sheaths with septa few-to-many, conspicuous or inconspicuous;
    blades 30–54 cm × 5–9 mm.
    Inflorescences terminal;
    rays ascending or sometimes spreading, scabrous throughout or main branches smooth proximally, rays rarely with axillary bulblets;
    bases of involucral-bracts black, glutinous.
    Spikelets in open cymes, central spikelet of each cyme sessile, others usually pedicellate, spikelets ovoid or ellipsoid to cylindric, 3.5–10.5 × 2–3 (–5) mm;
    scales blackish, at least distally, with pale midribs, elliptic or narrowly elliptic to obovate or narrowly obovate, 2–3.1 mm, apex rounded to obtuse or minutely apiculate, apiculus (if present) less than 0.05 mm.
    Flowers: perianth bristles persistent, 6, slender, contorted, much longer than achene, smooth, projecting beyond scales, mature inflorescence appearing woolly;
    Achenes reddish-brown, elliptic or obovate in outline, planoconvex or plumply trigonous, 0.7–1 × 0.4–0.5 mm. 2n = 66, 68.