Schoenoplectus (Rchb.) Palla
  • Verh. K.K. Zool.-Bot. Ges. Wien 38: 49. 1888. (Mar 1888)
  • Naked-stemmed bulrushes, scirpes, schoenoplecte [Greek schoinos, a rush, reed, and plectos, plaited, twisted, woven, in reference to the use of culms in making useful objects]


Cite taxon page as 'WFO (2020): Schoenoplectus (Rchb.) Palla. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000034542. Accessed on: 18 Feb 2020'

General Information

17. Schoenoplectus (H.G. Reichb.) Palla

Scirpus subgen. Schoenoplectus H.G. Reichb.

Por C.D. Adams.

Anuales pequeñas, fasciculadas, con raíces fibrosas, o perennes de talla mediana o grande, generalmente rizomatosas. Tallos cespitosos o remotos entre sí, erectos, lisos, trígonos, teretes o acostillados, la base no tuberosa. Hojas inferiores con vainas foliares carentes de láminas o las superiores desarrollando ocasionalmente láminas. Inflorescencia un agregado simple seudolateral de espiguillas o compuesto; bráctea generalmente 1, erecta, pareciendo una continuación del tallo. Espiguillas bisexuales, escasas o abundantes, sésiles o pediceladas, ovoides u oblongas. Glumas espiraladas, deciduas, ovadas, redondeadas en la parte posterior, con una nervadura media fuerte, la nervadura lateral inconspicua u obsoleta; raquilla persistente. Flores bisexuales; perianto de 2-6 escamas o cerdas o ausentes; estambres (2-)3; estilo 2-fido (Mesoamérica) o 3-fido. Aquenios lenticulares, biconvexos o aplanado-convexos, lisos o transversalmente rugosos. Aprox. 40 spp. Cosmopolita.

Bibliografía: Koyama, T. Canad. J. Bot. 41: 1107-1131 (1963). Lye, K.A. Bot. Not. 124: 287-291 (1971b). Raynal, J. Adansonia n.s. 16: 119-155 (1976a).

  • Provided by: [E].Flora Mesoamericana
    • Source: [
    • 1
    • 4
    • ]. 

    Herbs, annual or perennial, sometimes with creeping rhizomes. Culms tufted, not nodose above base. Leaves usually reduced to a sheath or more rarely developing a ligulate blade. Involucral bracts culmlike, erect. Inflorescence a pseudolateral anthela or more frequently capitate with (1 or)few to many spikelets. Spikelets ovoid to ellipsoid. Glumes many, spiral (rarely pseudodistichous), deciduous or rarely persistent, often each subtending a bisexual flower. Perianth bristles 0-6, needlelike, shorter to longer than nutlet, smooth, scabrous, or plumose, deciduous with nutlet. Stamens 1-3. Style base not distinct, not thickened, persistent. Nutlet obovoid, ± 3-sided or biconvex, smooth to rugose, apex beaked or not.

  • Provided by: [F].Flora Of CHina @ efloras.org
    • Source: [
    • 2
    • ]. 

    Herbs, perennial or annual, cespitose or not, rhizomatous or not. Culms solitary or not, cylindric to strongly trigonous, smooth, glabrous, spongy with internal air cavities. Leaves basal, rarely 1(–2) cauline; sheaths tubular; ligules membranous, glabrous; blades well developed to rudimentary, cross section dorsiventrally flat to C-shaped or laterally compressed, soft, smooth or margins sometimes distally scabrous or spinulose. Inflorescences terminal, capitate to openly paniculate; spikelets 1–100+; involucral bracts 1–5, leaflike, proximal bract erect to spreading. Spikelets terete, 3–25 × 2–5 mm; scales deciduous, 8+, spirally arranged, each subtending flower, or proximal scale empty (sometimes called a bracteole), floral scales with apex entire or 2-fid, midrib usually prolonged into mucro or awn, smooth or abaxial surface scabrous, margins ciliate. Flowers bisexual (basal flowers pistillate in amphicarpic species); perianth of 0–6(–8) bristles, straight or curved, spinulose, straplike, sometimes fringed with soft, blunt hairs, shorter than to somewhat exceeding achene; stamens 3; anthers 3 mm; styles linear, 2–3-fid, base not or scarcely enlarged, deciduous in fruit. Achenes biconvex to trigonous, with apical beak, faintly to prominently rugose or with transverse wavy ridges, 2.5–3.5 mm including 0.1–2 mm beak.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 3
    • ]. 

    Plantas anuales o perennes; culmos erectos, trígonos, cilíndricos o acostillados. Hojas reducidas a la vainasin lámina, u ocasionalmente con la lámina desarrollada. Infl. un agregado simple y pseudolateral de espiguillas,o compuesto; bráctea generalmente 1, parecida a una continuación del culmo. Espiguillas bisexuales, sésiles opediceladas; glumas espiraladas, deciduas, con la nervadura media conspicua; raquilla persistente. Fls. bi-sexuales, con perianto (en CR) de 2–6 cerdas o escamas; estambres 3; estilo bífido. Frs. (aquenios) lenticulares,biconvexos, o aplanado-convexos.

  • Provided by: [C].Manual de Plantas de Costa Rica
    • Source: [
    • 5
    • 6
    • ]. 

    Literature

    SELECTED REFERENCES

    Beetle, A. A. 1941. Studies in the genus Scirpus L. III. The American species of the section Lacustres Clarke. Amer. J. Bot. 28: 691–700. Beetle, A. A. 1942b. Studies in the genus Scirpus L. V. Notes on the section Actaeogeton Reich. Amer. J. Bot. 29: 653–656. Beetle, A. A. 1943. Studies in the genus Scirpus L. VI. The section Schoenoplectus Palla. Amer. J. Bot. 30: 395–401. Chase, A. 1904. The North American allies of Scirpus lacustris. Rhodora 6: 65–71, plates 52, 53. Koyama, T. 1962b. The genus Scirpus Linn. Some North American aphylloid species. Canad. J. Bot. 40: 913–937. Koyama, T. 1963. The genus Scirpus Linn. Critical species of the section Pterolepis. Canad. J. Bot. 41: 1107–1131. Raynal, J. 1976. Notes Cyperologiques: 26. Le genre Schoenoplectus II. L’amphicarpie et la sect. Supini. Adansonia, n. s. 16: 119–155. Schuyler, A. E. 1971. Scanning electron microscopy of achene epidermis in species of Scirpus (Cyperaceae) and related genera. Proc. Acad. Nat. Sci. Philadelphia 123(2): 29–52. Smith, S. G. and E. Hayasaka. 2001. Delineation of Schoenoplectis sect. Malacogeton (Cyperaceae), new combination, and distinctions of species. J. Jap. Bot. 76: 339–343.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 3
    • ]. 

    Included Species

    Other Local Names

    NameLanguageCountry
    Naked-stemmed bulrushes, scirpes, schoenoplecte [Greek schoinos, a rush, reed, and plectos, plaited, twisted, woven, in reference to the use of culms in making useful objects]

     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
    Manual de Plantas de Costa Rica
    http://www.tropicos.org/Project/Costa%20Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • 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
    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
    • E Missouri Botanical Garden
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • 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).