Rhynchospora fascicularis (Michx.) Vahl
  • Enum. Pl. Obs.


Cite taxon page as 'WFO (2020): Rhynchospora fascicularis (Michx.) Vahl. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000516465. Accessed on: 05 Jul 2020'

General Information

35. Rhynchospora fascicularis (Michaux) Vahl, Enum. Pl. 2: 234 (1805).

Por W.W. Thomas.

Schoenus fascicularis Michaux, Fl. Bor.-Amer. 1: 37 (1803). Holotipo: Estados Unidos, Bosc s.n. (fragm. NY! ex P).

Perennes cespitosas, delgadas; tallos 12-110 cm. Hojas en su mayoría basales o cerca de la base; láminas involutas a plegadas. Cerdas hipóginas 5-6, el 1/2 del largo a raramente del largo del aquenio, antrorsamente escabrosas. Aquenios 1.2-1.7 x 0.9-1.4 mm, lenticulares, obovados a anchamente obovados, lisos a ligeramente transversalmente rugulosos. Base del estilo 0.4-0.7 x 0.5-1 mm, deltada a triangular, continua con la cima del aquenio, los márgenes no escabrosos. T, B, G, N. (SE. Estados Unidos, Mesoamérica, N. Sudamérica, Antillas.)

  • Provided by: [F].Flora Mesoamericana
    • Source: [
    • 1
    • ]. 

    Plants perennial, cespitose, 100–150 cm; rhizomes absent. Culms erect to excurved ascending, narrowly linear to ± filiform, terete to obscurely trigonous, leafy, densely so toward base, stiff to rather lax. Leaves overtopped by culm; blades linear, ascending, proximally flat, 1–4 mm wide, apex trigonous, subulate, tapering gradually. Inflorescences: spikelet clusters 1–3(–4), proximal mostly widely spaced, dense, broadly turbinate to hemispheric, to 2 cm broad; leafy bracts subulate, exceeding proximal spikelets, slightly or not exceeding most distal clusters. Spikelets red brown, narrowly ovoid, (3–)3.5–5 mm, apex acute; fertile scales ovate, 3–3.5(–4) mm, apex acute, mostly with cusp or mucro 0.5–1 mm. Flowers: bristles 5–6, from rudimentary to reaching tubercle tip, or (rarely) beyond, antrorsely barbellate. Fruits 1–3 per spikelet, (1.5–)2–2.2(–2.5) mm; body dark brown with pale center, lenticular, broadly ellipsoid to ± orbicular, (1.3–)1.5–1.7(–1.9) × 1–1.5 mm, margins pale, narrow or narrowly rounded, flowing to tubercle; surfaces dull, minutely longitudinally striate; tubercle compressed, triangular to triangular subulate, 0.5–0.7(–0.9) mm.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    Rhynchospora fascicularis (Michx.) Vahl var. fascicularis, Enum. Pl. 2: 234. 1805; Schoenus fascicularis Michx.

    Perennes, cespitosas, lisas; culmos delgados, ascendentes, 60–100 cm de alto, foliosos. Hojas con láminas 10–30 cm de largo y 1–3 mm de ancho, planas a involutas, agudas, sulcadas. Inflorescencia de 2–4 fascículos distantes, turbinados, 7–10 mm de alto, rojo-cafés, excedidos por brácteas foliáceas setáceas, bractéolas casi tan largas como los fascículos; espiguillas ampliamente elipsoides, ca 4 mm de largo; escamas fértiles ovadas, ca 3 mm de largo, acuminadas, cortamente aristadas, carinadas; estilo profundamente bífido. Fruto ampliamente obovoide-lenticular, ca 1.5 mm de largo, liso, margen café, pedicelo contraído junto con el receptáculo de color pálido, ápice truncado y cubierto por el tubérculo, tubérculo triangular, ca 0.5 mm de alto; cerdas del perianto más cortas que el cuerpo del fruto, antrorsamente ancistrosas.

    Conocida en Nicaragua por una sola colección (Stevens 10410) de sabanas arenosas, húmedas y alteradas, zona atlántica; 0–100 m; fl y fr todo el año; Estados Unidos (Virginia a Florida y Texas), Belice, Nicaragua, norte de Sudamérica y en las Antillas. Las formas norteamericanas son más altas, con fascículos más grandes y perianto más largo.

  • Provided by: [C].Flora de Nicaragua
    • Source: [
    • 3
    • ]. 

    "Cespitose, erect to 1 m, relatively coarse, the stems 1.5–3 mm thick near the base; lvs filiform or to 4 mm wide, no more than half as long as the stems; terminal glomerules broadly turbinate to corymbiform, 5–25 mm thick, or compound and to 5 cm wide; lateral glomerules 0.3, usually remote, conspicuously pedunculate; spikelets 2.5–4 mm, with 2–4 fls and 1–3 frs; bristles (0–)6, antrorsely barbellate, variable, up to as long as the achene; achenes elliptic to subrotund, brown, sometimes pale at the center, 1.3–1.7 mm, three-fourths to fully as wide; tubercle deltoid, 0.3–0.8 mm, up to half as long or sometimes fully as long as the achene. Wet acid soil on the coastal plain; trop. Amer., n. to Tex. and se. Va."

  • Provided by: [E].New York Botanical Garden
    • Source: [
    • 4
    • ]. 

     Information From

    Cyperaceae
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B Missouri Botanical Garden
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • C Missouri Botanical Garden
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Flora of North America Association
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora Mesoamericana
    http://www.mobot.org/MOBOT/fm/
    Gerrit Davidse, Mario Sousa Sánchez, A. O. Chater, Universidad Nacional Autónoma de México. Instituto de Biología, Missouri Botanical Garden, Natural History Museum (London, England) UNAM, 1994
    • F Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).