Scirpus ancistrochaetus Schuyler (Q3369)

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

    Statements

    taxon/id/Scirpus ancistrochaetus Schuyler
    0 references
    Scirpus ancistrochaetus Schuyler
    Scirpus ancistrochaetus
    Schuyler
    FNA Editorial Committee. 2002. Flora of North America north of Mexico. Volume 23: Cyperaceae. Oxford University Press, New York.
    accepted
    Scirpus ancistrochaetus
    scirpe à crochets (French)
    northeastern bulrush (English)
    barbed bristle bulrush (English)
    Scirpe à crochets (English)
    wet depressions
    sinkhole ponds
    or adjacent to pools
    rhizomes brownish, short, tough, fibrous.
    Culms: fertile ones upright or reclining;
    Leaves 5–9 per culm;
    sheaths of proximal leaves green to whitish or brown;
    proximal sheaths and blades with septa many, conspicuous;
    blades 32–68 cm × 7–13 (–16) mm.
    Inflorescences terminal, rarely also with 1 lateral inflorescence from distal leaf-axil;
    rays all arching or sometimes 1 or 2 ascending, distal branches scabrous, proximal branches smooth, rarely scabrellous, rays sometimes with axillary bulblets;
    bases of involucral-bracts green, margins usually speckled with redbrown, not glutinous.
    Spikelets in clusters of 2–18 (largest cluster with 8 or more), spikelets sessile, ovoid to narrowly ovoid, 3–5 × 2–3 mm;
    scales brown or blackish brown with greenish midribs, elliptic, 1.5–2.5 mm, apex slightly mucronate, mucro 0.05–0.1 (–0.2) mm.
    Flowers: perianth bristles persistent, 6, stout, straight or curved, slightly shorter to slightly longer than achene, with retrorse, thick-walled, sharp-pointed teeth densely arranged in distal 0.6–0.9, enclosed within scales;
    Achenes pale-brown, elliptic to obovate in outline, planoconvex, 1.1–1.7 × 0.6–0.8 mm. 2n = 54.